Results for 'Gravitational thermodynamics'

453 found
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  1.  74
    Making Sense of Gravitational Thermodynamics.Lorenzo Lorenzetti - forthcoming - Philosophy of Physics.
    The use of statistical methods to model gravitational systems is crucial to physics practice, but the extent to which thermodynamics and statistical mechanics genuinely apply to these systems is a contentious issue. This paper provides new conceptual foundations for gravitational thermodynamics by reconsidering the nature of key concepts like equilibrium and advancing a novel way of understanding thermodynamics. The challenges arise from the peculiar characteristics of the gravitational potential, leading to non-extensive energy and entropy, (...)
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  2.  33
    Making Sense of Gravitational Thermodynamics.Lorenzo Lorenzetti - forthcoming - Philosophy of Physics.
    The use of statistical methods to model gravitational systems is crucial to physics practice, but the extent to which thermodynamics and statistical mechanics genuinely apply to these systems is a contentious issue. This paper provides new conceptual foundations for gravitational thermodynamics by reconsidering the nature of key concepts like equilibrium and advancing a novel way of understanding thermodynamics. The challenges arise from the peculiar characteristics of the gravitational potential, leading to non-extensive energy and entropy, (...)
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  3. Quantum Holographic Black Holes: A Unified Framework Bridging Loop Quantum Gravity, String Theory, and AdS/CFT.Lance Salazar - manuscript
    I present a quantum gravitational model of black holes that resolves key paradoxes in black hole physics, including the information loss problem, singularity issue, and thermodynamic inconsistencies. By integrating insights from Loop Quantum Gravity (LQG), AdS/CFT holography, and String Theory’s fuzzball paradigm, we propose a quantum-corrected black hole metric that introduces an inner Planck-scale horizon, preventing singularity formation. Our model naturally modifies black hole entropy, incorporating quantized microstates consistent with both LQG area spectrum and holographic principles. Additionally, I derive (...)
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  4. A Fundamentally Irreversible World as an Opportunity towards a Consistent Understanding of Quantum and Cosmological Contexts.Tributsch Helmut Helmuttributsch@Aliceit - 2016 - Lournal of Modern Physics 7:1455-1482.
    In a preceding publication a fundamentally oriented and irreversible world was shown to be de- rivable from the important principle of least action. A consequence of such a paradigm change is avoidance of paradoxes within a “dynamic” quantum physics. This becomes essentially possible because fundamental irreversibility allows consideration of the “entropy” concept in elementary processes. For this reason, and for a compensation of entropy in the spread out energy of the wave, the duality of particle and wave has to be (...)
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  5. Negative-Energy Matter and the Direction of Time.J. C. Lindner - forthcoming
    This report offers a modern perspective on the problem of negative energy, based on a reexamination of the concept of time direction as it arises in a classical and quantum-mechanical context. From this analysis emerges an improved understanding of the general-relativistic stress-energy of matter as being a manifestation of local variations in the energy density of zero-point vacuum fluctuations. Based on those developments, a set of axioms is proposed from which are derived generalized gravitational field equations which actually constitute (...)
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  6. Philosophical issues about Black holes.Gustavo E. Romero - 2014 - In Abraham Barton, Advances in Black Holes Research. New York: Nova Science Publishers. pp. 25-58.
    Black holes are extremely relativistic objects. Physical processes around them occur in a regime where the gravitational field is extremely intense. Under such conditions, our representations of space, time, gravity, and thermodynamics are pushed to their limits. In such a situation philosophical issues naturally arise. In this chapter I review some philosophical questions related to black holes. In particular, the relevance of black holes for the metaphysical dispute between presentists and eternalists, the origin of the second law of (...)
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  7. All God Has to Do.Tim Crane - 1991 - Analysis 51 (4):235-44.
    In the beginning God created the elementary particles. Bosons, electrons, protons, quarks and the rest he created them. And they were without form and void, so God created the fundamental laws of physics - the laws of mechanics, electromagnetism, thermodynamics and the rest - and assigned values to the fundamental physical constants: the gravitational constant, the speed of light, Planck's constant and the rest. God then set the Universe in motion. And God looked at what he had done, (...)
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  8. Cosmological Black Holes and the Direction of Time.Gustavo E. Romero, Federico G. López Armengol & Daniela Pérez - 2018 - Foundations of Science 23 (2):415-426.
    Macroscopic irreversible processes emerge from fundamental physical laws of reversible character. The source of the local irreversibility seems to be not in the laws themselves but in the initial and boundary conditions of the equations that represent the laws. In this work we propose that the screening of currents by black hole event horizons determines, locally, a preferred direction for the flux of electromagnetic energy. We study the growth of black hole event horizons due to the cosmological expansion and accretion (...)
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  9. On the fundamental meaning of the principle of least action and consequences for a "dynamic" quantum physics.Helmut Tributsch - 2016 - Journal of Modern Physics 7:365-374.
    The principle of least action, which has so successfully been applied to diverse fields of physics looks back at three centuries of philosophical and mathematical discussions and controversies. They could not explain why nature is applying the principle and why scalar energy quantities succeed in describing dynamic motion. When the least action integral is subdivided into infinitesimal small sections each one has to maintain the ability to minimise. This however has the mathematical consequence that the Lagrange function at a given (...)
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  10.  28
    The Universal Law of Balance: A New Framework for Understanding the Cosmos, Consciousness, and Reality.Angelito Malicse - manuscript
    The Universal Law of Balance: A New Framework for Understanding the Cosmos, Consciousness, and Reality -/- By Angelito Malicse -/- Introduction -/- For centuries, human civilization has sought to understand the nature of existence, consciousness, and the physical universe. Traditional approaches—whether philosophical, scientific, or religious—have often struggled to unify these seemingly distinct areas of knowledge. However, by applying the universal law of balance, we can uncover a deeper understanding of how everything in nature follows a fundamental equilibrium principle. -/- This (...)
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  11.  24
    The Universal Law of Balance in Nature and the Emergence of Consciousness.Angelito Malicse - manuscript
    The Universal Law of Balance in Nature and the Emergence of Consciousness -/- By: Angelito Enriquez Malicse -/- Introduction -/- All natural systems follow the universal law of balance in nature, governing everything from the motion of celestial bodies to the behavior of living organisms. However, while all matter follows balance, not all matter is conscious. The key distinction lies in the degree of self-regulation and integration a system possesses. Consciousness is not an arbitrary phenomenon but an emergent property of (...)
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  12.  8
    The Universal Law of Balance in Nature and Its Application to Cosmology.Angelito Malicse - manuscript
    -/- The Universal Law of Balance in Nature and Its Application to Cosmology -/- The universe, in all its vastness and complexity, follows fundamental principles that govern its formation, structure, and evolution. If the universal law of balance in nature, as formulated by Angelito Malicse, is truly a fundamental law, then it must apply to all physical systems—including cosmology. The cosmos operates through a delicate interplay of opposing forces, equilibrium states, and self-regulating processes. From the expansion of the universe to (...)
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  13. A BRIEF OUTLINE OF THE POSSIBLE BASICS OF COSMOLOGY IN THE 22nd CENTURY, AND WHAT IT MEANS FOR RELIGION.Rodney Bartlett - manuscript
    This article’s conclusion is that the theories of Einstein are generally correct and will still be relevant in the next century (there will be modifications necessary for development of quantum gravity). Those Einsteinian theories are Special Relativity, General Relativity, and the title of a paper he published in 1919 which asked if gravitation plays a role in the composition of elementary particles of matter. This paper was the bridge between General Relativity and the Unified Field Theory he sought during the (...)
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  14. Advances in Black Holes Research.Abraham Barton (ed.) - 2014 - New York: Nova Science Publishers.
    Black holes are extremely relativistic objects. Physical processes around them occur in a regime where the gravitational field is extremely intense. Under such conditions, our representations of space, time, gravity, and thermodynamics are pushed to their limits. In such a situation philosophical issues naturally arise. In this chapter I review some philosophical questions related to black holes. In particular, the relevance of black holes for the metaphysical dispute between presentists and eternalists, the origin of the second law of (...)
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  15. Space, time, and irreversibility.Gustavo E. Romero - 2017 - MÈTODE Science Studies Journal 7:201-209.
    Scientific philosophy is that which is informed by science. It uses exact tools such as logic and mathematics and provides a framework for scientific activity to solve more general questions about nature, the language we use to describe it, and the knowledge we obtain thanks to it. Many of the scientific philosophy theories can be proven and evaluated using scientific evidence. In this paper, I focus on showing how several classical philosophy topics, such as the nature of space and time (...)
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  16. (1 other version)Universal Gravitation and the (Un)Intelligibility of Natural Philosophy.Matias Slavov - 2019 - Pacific Philosophical Quarterly 101 (1):129-157.
    This article centers on Hume’s position on the intelligibility of natural philosophy. To that end, the controversy surrounding universal gravitation shall be scrutinized. It is very well-known that Hume sides with the Newtonian experimentalist approach rather than with the Leibnizian demand for intelligibility. However, what is not clear is Hume’s overall position on the intelligibility of natural philosophy. It shall be argued that Hume declines Leibniz’s principle of intelligibility. However, Hume does not eschew intelligibility altogether; his concept of causation itself (...)
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  17. Statistical mechanics and thermodynamics: A Maxwellian view.Wayne C. Myrvold - 2011 - Studies in History and Philosophy of Science Part A 42 (4):237-243.
    One finds, in Maxwell's writings on thermodynamics and statistical physics, a conception of the nature of these subjects that differs in interesting ways from the way that they are usually conceived. In particular, though—in agreement with the currently accepted view—Maxwell maintains that the second law of thermodynamics, as originally conceived, cannot be strictly true, the replacement he proposes is different from the version accepted by most physicists today. The modification of the second law accepted by most physicists is (...)
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  18. Explaining Thermodynamic-Like Behavior in Terms of Epsilon-Ergodicity.Roman Frigg & Charlotte Werndl - 2011 - Philosophy of Science 78 (4):628-652.
    Gases reach equilibrium when left to themselves. Why do they behave in this way? The canonical answer to this question, originally proffered by Boltzmann, is that the systems have to be ergodic. This answer has been criticised on different grounds and is now widely regarded as flawed. In this paper we argue that some of the main arguments against Boltzmann's answer, in particular, arguments based on the KAM-theorem and the Markus-Meyer theorem, are beside the point. We then argue that something (...)
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  19. Gravitational decoherence: A thematic overview.C. Anastopoulos & B. L. Hu - 2022 - AVS Quantum Science 4:015602.
    Gravitational decoherence (GD) refers to the effects of gravity in actuating the classical appearance of a quantum system. Because the underlying processes involve issues in general relativity (GR), quantum field theory (QFT), and quantum information, GD has fundamental theoretical significance. There is a great variety of GD models, many of them involving physics that diverge from GR and/or QFT. This overview has two specific goals along with one central theme:(i) present theories of GD based on GR and QFT and (...)
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  20. Thermodynamics of an Empty Box.G. J. Schmitz, M. te Vrugt, T. Haug-Warberg, L. Ellingsen & P. Needham - 2023 - Entropy 25 (315):1-30.
    A gas in a box is perhaps the most important model system studied in thermodynamics and statistical mechanics. Usually, studies focus on the gas, whereas the box merely serves as an idealized confinement. The present article focuses on the box as the central object and develops a thermodynamic theory by treating the geometric degrees of freedom of the box as the degrees of freedom of a thermodynamic system. Applying standard mathematical methods to the thermody- namics of an empty box (...)
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  21. Thermodynamic Head Loss in a Channel with Combined Radiation and Convection Heat Transfer.Deodat Makhanlall - 2014 - Journal of Power and Energy Engineering 2 (9):57-63.
    Losses in channel flows are usually determined using a frictional head loss parameter. Fluid friction is however not the only source of loss in channel flows with heat transfer. For such flow problems, thermal energy degradation, in addition to mechanical energy degradation, add to the total loss in thermodynamic head. To assess the total loss in a channel with combined convection and radiation heat transfer, the conventional frictional head loss parameter is extended in this study. The analysis is applied to (...)
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  22. Thermodynamics and Mechanical Equivalent of Heat.Nahum Kipnis - 2014 - Science & Education 23 (10):2007-2044.
    This paper is the first part of a three-part project ‘How the principle of energy conservation evolved between 1842 and 1870: the view of a participant’. This paper aims at showing how the new ideas of Mayer and Joule were received, what constituted the new theory in the period under study, and how it was supported experimentally. A connection was found between the new theory and thermodynamics which benefited both of them. Some considerations are offered about the desirability of (...)
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  23. Reality in a Few Thermodynamic Reference Frames: Statistical Thermodynamics From Boltzmann via Gibbs to Einstein.Vasil Penchev - 2020 - Philosophy of Science eJournal (Elsevier: SSRN) 13 (33):1-14.
    The success of a few theories in statistical thermodynamics can be correlated with their selectivity to reality. These are the theories of Boltzmann, Gibbs, and Einstein. The starting point is Carnot’s theory, which defines implicitly the general selection of reality relevant to thermodynamics. The three other theories share this selection, but specify it further in detail. Each of them separates a few main aspects within the scope of the implicit thermodynamic reality. Their success grounds on that selection. Those (...)
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  24. Classic gravitational tests of post-Einsteinian theories.Nicolae Sfetcu - manuscript
    Albert Einstein proposed three tests of general relativity, later named the classic tests of general relativity, in 1916: the precession of the perihelion of Mercury's orbit, sun light deflection, and the gravitational redshift of the light. For gravitational testing, the indirect effects of gravity are always used, usually particles that are influenced by gravity. In the presence of gravity, the particles move along curved geodesic lines. The sources of gravity that cause the curvature of spacetime are material bodies, (...)
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  25. Gravitational Singularities.Nicolae Sfetcu - manuscript
    Gravitational singularities in general relativity are spacetime locations where the gravitational field becomes infinite. Scalar invariant curves of spacetime include a measure of matter density. Some physicists and philosophers believe that because the density of matter tends to become infinite in singularity, spacetime laws are no longer valid there. A gravitational singularity almost universally accepted in astrophysics and cosmology as the earliest state of the universe, is the Big Bang. In this case also, the known laws of (...)
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  26. Quantum Foundations of Statistical Mechanics and Thermodynamics.Orly Shenker - 2022 - In Eleanor Knox & Alastair Wilson, The Routledge Companion to Philosophy of Physics. London, UK: Routledge. pp. Ch. 29.
    Statistical mechanics is often taken to be the paradigm of a successful inter-theoretic reduction, which explains the high-level phenomena (primarily those described by thermodynamics) by using the fundamental theories of physics together with some auxiliary hypotheses. In my view, the scope of statistical mechanics is wider since it is the type-identity physicalist account of all the special sciences. But in this chapter, I focus on the more traditional and less controversial domain of this theory, namely, that of explaining the (...)
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  27. Entanglement and thermodynamics in general probabilistic theories.Giulio Chiribella & Carlo Maria Scandolo - 2015 - New Journal of Physics 17:103027.
    Entanglement is one of the most striking features of quantum mechanics, and yet it is not specifically quantum. More specific to quantum mechanics is the connection between entanglement and thermodynamics, which leads to an identification between entropies and measures of pure state entanglement. Here we search for the roots of this connection, investigating the relation between entanglement and thermodynamics in the framework of general probabilistic theories. We first address the question whether an entangled state can be transformed into (...)
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  28. The Second Law of Thermodynamics and the Psychological Arrow of Time.Meir Hemmo & Orly Shenker - 2019 - British Journal for the Philosophy of Science 73 (1):85-107.
    Can the second law of thermodynamics explain our mental experience of the direction of time? According to an influential approach, the past hypothesis of universal low entropy also explains how the psychological arrow comes about. We argue that although this approach has many attractive features, it cannot explain the psychological arrow after all. In particular, we show that the past hypothesis is neither necessary nor sufficient to explain the psychological arrow on the basis of current physics. We propose two (...)
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  29. Electromagnetic and Gravitational Pictures of the World.Sergey G. Fedosin - 2007 - Apeiron 14 (4):385-413.
    The review of the theory of electromagnetic field together with the special and general theories of relativity has been made. The similar theory of gravitation has been presented which has the property of Lorentz-invariancy in its own representation in which the information is transferred at the speed of propagation of the gravitational field. Generalization of the specified gravitation theory on noninertial reference systems has been made with the help of the mathematical apparatus of the general relativity. It allows to (...)
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  30. Épistémologie de la gravité quantique.Sfetcu Nicolae - manuscript
    La gravité quantique a nécessité la prise en compte des questions épistémologiques fondamentales, qui peuvent être identifiées en philosophie avec le problème corps-esprit et le problème du libre arbitre . Ces questions ont influencé l'épistémologie de la mécanique quantique sous la forme du « parallélisme psycho-physique » de von Neumann et l'analyse ultérieure de la thèse de Wigner selon laquelle « l'effondrement du paquet d'ondes » se produit dans l'esprit de « l'observateur ». La gravité quantique en cosmologie pose le (...)
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  31. Gravité et cosmologie.Sfetcu Nicolae - manuscript
    En cosmologie, la métaphysique implique un large éventail de questions au-delà des preuves empiriques, utilisant parfois l'inférence spéculative. L'analyse épistémologique en cosmologie aide à modéliser l'évaluation. L'étude philosophique offre un cadre général pour interpréter des inférences qui vont au-delà de la science. En cosmologie, il existe des principes ontologiques qui aident à classer les modèles selon leurs caractéristiques, à concevoir la réalité cosmique dans une description plus transparente, et nous permettent de résoudre des équations mathématiques en tant que constructions centrales (...)
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  32. Does von Neumann Entropy Correspond to Thermodynamic Entropy?Eugene Y. S. Chua - 2021 - Philosophy of Science 88 (1):145-168.
    Conventional wisdom holds that the von Neumann entropy corresponds to thermodynamic entropy, but Hemmo and Shenker (2006) have recently argued against this view by attacking von Neumann's (1955) argument. I argue that Hemmo and Shenker's arguments fail due to several misunderstandings: about statistical-mechanical and thermodynamic domains of applicability, about the nature of mixed states, and about the role of approximations in physics. As a result, their arguments fail in all cases: in the single-particle case, the finite particles case, and the (...)
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  33. Gravitating towards stability: Guidobaldo's Aristotelian-Archimedean synthesis.Maarten Van Dyck - 2006 - History of Science 44 (4):373-407.
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  34. Unification de la gravité avec les autres forces fondamentales.Sfetcu Nicolae - manuscript
    Plusieurs théories unificatrices ont été proposées. Une grande unification implique l'existence d'une force électronucléaire. La dernière étape de l'unification nécessiterait une théorie qui inclue à la fois la mécanique quantique et la gravité par la relativité générale (« la théorie finale »). Après 1990, certains physiciens considèrent que la théorie M à 11 dimensions, souvent identifiée à l'une des cinq théories des supercordes perturbateurs, ou parfois à la supergravité à supersymétrie maximale supersymétrique à 11 dimensions, est la théorie finale. L'idée (...)
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  35. How Anti-Humeans Can Embrace a Thermodynamic Reduction of Time’s Causal Arrow.Eli I. Lichtenstein - 2021 - Philosophy of Science 88 (5):1161-1171.
    Some argue that time’s causal arrow is grounded in an underlying thermodynamic asymmetry. Often, this is tied to Humean skepticism that causes produce their effects, in any robust sense of ‘produce’. Conversely, those who advocate stronger notions of natural necessity often reject thermodynamic reductions of time’s causal arrow. Against these traditional pairings, I argue that ‘reduction-plus-production’ is coherent. Reductionists looking to invoke robust production can insist that there are metaphysical constraints on the signs of objects’ velocities in any state, given (...)
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  36. Épistemologie de la gravité quantique canonique - Gravité quantique à boucles.Sfetcu Nicolae - manuscript
    Dans l'interprétation de la gravité quantique canonique, la gravité apparaît comme une pseudoforce géométrique, elle est réduite à la géométrie espace-temps et devient un simple effet de la courbure de l'espace-temps . Le formalisme canonique ne confirme pas cette interprétation. La relativité générale associe la gravité à l'espace-temps, mais le type d'association n'est pas fixé. La gravité quantique à boucles tente d'unifier la gravité avec les trois autres forces fondamentales en commençant par la relativité et en ajoutant des traits quantiques. (...)
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  37. Nature of Gravitation. The Structural Intuition of Gravitation in the Framework of Early Modern Mechanical Philosophy.Babu Thaliath - 2012 - Philosophy Study 2 (9):595-618.
    As is generally known, Newton’s notion of universal gravitation surpassed various theories of particular gravities in the early modern age, as represented mainly by Kepler and Hooke. In his seminal work “Hooke and the Law of Universal Gravitation: A Reappraisal of a Reappraisal” Richard S. Westfall argues that Hooke could not reach beyond the concept of spatially bounded particular gravities, as he deployed the method of analogy between the material principle of congruity and incongruity and the extension of gravitational (...)
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  38. Tests de la gravité quantique.Sfetcu Nicolae - manuscript
    Le test primordial de toute théorie quantique de la gravité est la reproduction des succès de la relativité générale. Cela implique de reconstruire la géométrie locale à partir des observables non locaux. De plus, la gravité quantique devrait probablement prédire la topologie à grande échelle de l'Univers, qui pourrait bientôt être mesurable , et les phénomènes à l'échelle de Planck. Il existe déjà une prédiction liée à la gravité quantique: l'existence et le spectre du rayonnement Hawking du trou noir, une (...)
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  39. Gravité et tests gravitationnels.Nicolae Sfetcu - manuscript
    Les théories scientifiques en général, en physique en particulier, sont confirmées (temporairement) par des expériences vérifiant les affirmations et les prédictions des théories, jetant ainsi les bases de la connaissance scientifique. Francis Bacon a été le premier à soutenir le concept d'une expérience cruciale, qui peut décider la validité d'une hypothèse ou d'une théorie. Plus tard, Newton a soutenu que les théories scientifiques sont directement induites par les résultats expérimentaux et les observations, excluant les hypothèses non vérifiées. DOI: 10.13140/RG.2.2.34744.70403 .
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  40. The relativistic theory of gravitation beyond general relativity.Guillen Gomez Alfonso Leon - manuscript
    It presents the basics of the “Relativistic theory of gravitation”, with the inclusion of original texts, from various papers, published between 1987 and 2009, by theirs authors: S. S Gershtein, A. A. Logunov, Yu. M. Loskutov and M. A. Mestvirishvili, additionally, together with the introductions, summaries and conclusions of the author of this paper. The “Relativistic theory of gravitation” is a gauge theory, compatible with the theories of quantum physics of the electromagnetic, weak and strong forces, which defines gravity as (...)
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  41. L'heuristique de la gravité quantique.Sfetcu Nicolae - manuscript
    Il existe trois problèmes majeurs dans la conception d'une théorie de la gravité quantique: la théorie quantique et la relativité générale présentent en elles-mêmes des problèmes conceptuels importants, les bases fondamentales disparates des deux théories génèrent de nouveaux problèmes majeurs en essayant de les combiner, et le contraste entre l'absence d'une théorie de la gravité quantique satisfaisante et des théories des ingrédients réussis soulèvent des questions sur la nature et la fonction de la discussion philosophique de la gravité quantique. DOI: (...)
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  42. How Hilbert’s attempt to unify gravitation and electromagnetism failed completely, and a plausible resolution.Victor Christianto, Florentin Smarandache & Robert N. Boyd - manuscript
    In the present paper, these authors argue on actual reasons why Hilbert’s axiomatic program to unify gravitation theory and electromagnetism failed completely. An outline of plausible resolution of this problem is given here, based on: a) Gödel’s incompleteness theorem, b) Newton’s aether stream model. And in another paper we will present our calculation of receding Moon from Earth based on such a matter creation hypothesis. More experiments and observations are called to verify this new hypothesis, albeit it is inspired from (...)
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  43. (1 other version)Newton's Law of Universal Gravitation and Hume's Conception of Causality.Matias Slavov - 2013 - Philosophia Naturalis 50 (2):277-305.
    This article investigates the relationship between Hume’s causal philosophy and Newton ’s philosophy of nature. I claim that Newton ’s experimentalist methodology in gravity research is an important background for understanding Hume’s conception of causality: Hume sees the relation of cause and effect as not being founded on a priori reasoning, similar to the way that Newton criticized non - empirical hypotheses about the properties of gravity. However, according to Hume’s criteria of causal inference, the law of universal gravitation is (...)
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  44. Everettian Formulation of the Second Law of Thermodynamics.Yu Feng - manuscript
    The second law of thermodynamics is traditionally interpreted as a coarse-grained result of classical mechanics. Recently its relation with quantum mechanical processes such as decoherence and measurement has been revealed in literature. In this paper we will formulate the second law and the associated time irreversibility following Everett’s idea: systems entangled with an object getting to know the branch in which they live. Accounting for this self-locating knowledge, we get two forms of entropy: objective entropy measuring the uncertainty of (...)
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  45. Théorie des cordes, gravité quantique à boucles et éternalisme.Baptiste Le Bihan - 2021 - In Alexandre Declos & Claudine Tiercelin, La Métaphysique du Temps: Perspectives Contemporaines. Collège de France.
    L'éternalisme, la thèse selon laquelle les entités que nous catégorisons comme étant passées, présentes et futures existent tout autant, est la meilleure approche ontologique de l'existence temporelle qui soit en accord avec les théories de la relativité restreinte et de la relativité générale. Cependant, les théories de la relativité restreinte et générale ne sont pas fondamentales si bien que plusieurs programmes de recherche tentent de trouver une théorie plus fondamentale de la gravité quantique rassemblant tous les enseignements de la physique (...)
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  46.  97
    Leibniz and the First Law of Thermodynamics.Kateřina Lochmanová - 2024 - Teorie Vědy / Theory of Science 46 (1):89-114.
    The article presents the German philosopher G. W. Leibniz as a key precursor of the First Law of Thermodynamics. In this way, Leibniz tried to oppose Newton, who seems to have completely rejected the First Law of Thermodynamics, while at the same time remarkably anticipating the Second. Based on his polemics not only with Newton, from whose Laws of Motion thermodynamics originates, and with his advocate Samuel Clarke, but also with René Descartes, whose conception Leibniz partially followed, (...)
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  47. Einstein and gravitational waves.Alfonso Leon Guillen Gomez - manuscript
    The author presents the history of gravitational waves according to Einstein, linking it to his biography and his time in order to understand it in his connection with the history of the Semites, the personality of Einstein in the handling of his conflict-generating circumstances in his relationships competition with his colleagues and in the formulation of the so-called general theory of relativity. We will fall back on the vicissitudes that Einstein experienced in the transition from his scientific work to (...)
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  48. The relativistic theory of gravitation beyond general relativity.Alfonso Guillen Gomez - manuscript
    It presents the basics of the “Relativistic theory of gravitation”, with the inclusion of original texts, from various papers, published between 1987 and 2009, by theirs authors: S. S Gershtein, A. A. Logunov, Yu. M. Loskutov and M. A. Mestvirishvili, additionally, together with the introductions, summaries and conclusions of the author of this paper. The “Relativistic theory of gravitation” is a gauge theory, compatible with the theories of quantum physics of the electromagnetic, weak and strong forces, which defines gravity as (...)
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  49. Einstein's gravitation is Einstein-Grossmann's equations.Alfonso Leon Guillen Gomez - 2015 - Journal of Advances in Physics 11 (3):3099-3110.
    While the philosophers of science discuss the General Relativity, the mathematical physicists do not question it. Therefore, there is a conflict. From the theoretical point view “the question of precisely what Einstein discovered remains unanswered, for we have no consensus over the exact nature of the theory 's foundations. Is this the theory that extends the relativity of motion from inertial motion to accelerated motion, as Einstein contended? Or is it just a theory that treats gravitation geometrically in the spacetime (...)
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  50. Modern Tests of Relativistic Gravitational Theories.Nicolae Sfetcu - manuscript
    Dicke and Schiff established a framework for testing general relativity, including through null experiments and using the physics of space exploration, electronics and condensed matter, such as the Pound-Rebka experiment and laser interferometry. The gravitational lens tests and the temporal delay of light are highlighted by parameter γ of the PPN formalism, equal to 1 for general relativity and with different values in other theories. The BepiColombo mission aims to test the general theory of relativity by measuring the gamma (...)
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