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  1. Quantum Ontology: A Modal Bundle-Theorist Relational Proposal.Matías Pasqualini - forthcoming - Foundations of Science:1-24.
    Quantum mechanics poses several challenges in ontological elucidation. Contextuality threatens determinism and favors realism about possibilia. Indistinguishability challenges traditional identity criteria associated with individual objects. Entanglement favors holistic and relational approaches. These issues, in close connection with different interpretations of quantum mechanics, have given rise to various proposals for the ontology of quantum mechanics. There is a proposal that is realistic about possibilia, where quantum systems are seen as bundles of possible intrinsic properties. This proposal is developed in close connection (...)
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  • Quantum Mechanics: Ontology Without Individuals.Newton da Costa & Olimpia Lombardi - 2014 - Foundations of Physics 44 (12):1246-1257.
    The purpose of the present paper is to consider the traditional interpretive problems of quantum mechanics from the viewpoint of a modal ontology of properties. In particular, we will try to delineate a quantum ontology that (i) is modal, because describes the structure of the realm of possibility, and (ii) lacks the ontological category of individual. The final goal is to supply an adequate account of quantum non-individuality on the basis of this ontology.
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  • Dispositions and the Least Action Principle.Diego Maltrana & Federico Benitez - 2022 - Disputatio 14 (65):91-104.
    This work deals with obstacles hindering a metaphysics of laws of nature in terms of dispositions, i.e., of fundamental properties that are causal powers. A recent analysis of the principle of least action has put into question the viability of dispositionalism in the case of classical mechanics, generally seen as the physical theory most easily amenable to a dispositional ontology. Here, a proper consideration of the framework role played by the least action principle within the classical image of the world (...)
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  • The Relational Dissolution of the Quantum Measurement Problems.Andrea Oldofredi - 2022 - Foundations of Physics 53 (1):1-24.
    The Quantum Measurement Problem is arguably one of the most debated issues in the philosophy of Quantum Mechanics, since it represents not only a technical difficulty for the standard formulation of the theory, but also a source of interpretational disputes concerning the meaning of the quantum postulates. Another conundrum intimately connected with the QMP is the Wigner friend paradox, a thought experiment underlining the incoherence between the two dynamical laws governing the behavior of quantum systems, i.e the Schrödinger equation and (...)
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  • A new application of the modal-Hamiltonian interpretation of quantum mechanics: The problem of optical isomerism.Sebastian Fortin, Olimpia Lombardi & Juan Camilo Martínez González - 2018 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 62:123-135.
    The modal-Hamiltonian interpretation belongs to the modal family of interpretations of quantum mechanics. By endowing the Hamiltonian with the role of selecting the subset of the definite-valued observables of the system, it accounts for ideal and non-ideal measurements, and also supplies a criterion to distinguish between reliable and non-reliable measurements in the non-ideal case. It can be reformulated in an explicitly invariant form, in terms of the Casimir operators of the Galilean group, and the compatibility of the MHI with the (...)
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  • How Different Interpretations of Quantum Mechanics can Enrich Each Other: The Case of the Relational Quantum Mechanics and the Modal-Hamiltonian Interpretation.Olimpia Lombardi & Juan Sebastián Ardenghi - 2022 - Foundations of Physics 52 (3):1-21.
    In the literature on the interpretation of quantum mechanics, not many works attempt to adopt a proactive perspective aimed at seeing how different interpretations can enrich each other through a productive dialogue. In particular, few proposals have been devised to show that different approaches can be clarified by comparing them, and can even complement each other, improving or leading to a more fertile overall approach. The purpose of this paper is framed within this perspective of complementation and mutual enrichment. In (...)
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  • Trans-statistical Behavior of a Multiparticle System in an Ontology of Properties.Matías Pasqualini & Sebastian Fortin - 2022 - Foundations of Physics 52 (4):1-19.
    In the last years, the surprising bosonic behavior that a many-fermion system may acquire has raised interest because of theoretical and practical reasons. This trans-statistical behavior is usually considered to be the result of approximation modeling methods generally employed by physicists when faced with complexity. In this paper, we take a tensor product structure and an ontology of properties approach and provide two versions of a toy model in order to argue that trans-statistical behavior allows for a realistic interpretation.
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  • La controversia acerca de la identidad en su ingreso al ámbito de la mecánica cuántica.Olimpia Lombardi & Matías Daniel Pasqualini - 2022 - Ideas Y Valores 71:138-164.
    Los criterios de identidad propuestos por la metafísica tradicional debieron ser sometidos a una profunda revisión cuando entró en escena la mecánica cuántica con sus característicos sistemas indistinguibles. En este trabajo aplicamos el modelo de espacios controversiales de Oscar Nudler para analizar la controversia sobre la identidad en el ámbito de la mecánica cuántica y proponer la introducción en el debate de una ontología cuántica de propiedades sin objetos.
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  • Quasi-set theory: a formal approach to a quantum ontology of properties.Federico Holik, Juan Pablo Jorge, Décio Krause & Olimpia Lombardi - 2022 - Synthese 200 (5):1-26.
    In previous works, an ontology of properties for quantum mechanics has been proposed, according to which quantum systems are bundles of properties with no principle of individuality. The aim of the present article is to show that, since quasi-set theory is particularly suited for dealing with aggregates of items that do not belong to the traditional category of individual, it supplies an adequate meta-language to speak of the proposed ontology of properties and its structure.
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  • The Bundle Theory Approach to Relational Quantum Mechanics.Andrea Oldofredi - 2021 - Foundations of Physics 51 (1):1-22.
    The present essay provides a new metaphysical interpretation of Relational Quantum Mechanics (RQM) in terms of mereological bundle theory. The essential idea is to claim that a physical system in RQM can be defined as a mereological fusion of properties whose values may vary for different observers. Abandoning the Aristotelian tradition centered on the notion of substance, I claim that RQM embraces an ontology of properties that finds its roots in the heritage of David Hume. To this regard, defining what (...)
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  • Interview with Olimpia Lombardi.Eric R. Scerri - 2022 - Foundations of Chemistry 25 (1):101-117.
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  • Relational Event-Time in Quantum Mechanics.Matías Pasqualini, Olimpia Lombardi & Sebastian Fortin - 2021 - Foundations of Physics 52 (1):1-25.
    Some authors, inspired by the theoretical requirements for the formulation of a quantum theory of gravity, proposed a relational reconstruction of the quantum parameter-time—the time of the unitary evolution, which would make quantum mechanics compatible with relativity. The aim of the present work is to follow the lead of those relational programs by proposing a relational reconstruction of the event-time—which orders the detection of the definite values of the system’s observables. Such a reconstruction will be based on the modal-Hamiltonian interpretation (...)
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  • Trans-estadística cuántica desde una ontología de propiedades.Sebastian Fortin & Matías Pasqualini - 2023 - Revista Colombiana de Filosofía de la Ciencia 23 (47):255-291.
    En los últimos años, el comportamiento bosónico que un sistema de fermiones puede exhibir ha despertado el interés de los físicos. En este trabajo, se adopta un enfoque basado en estructuras producto tensorial y se asume una ontología de propiedades para argumentar en favor de la relatividad de la noción de identidad estadística y en favor de una interpretación realista del comportamiento trans-estadístico.
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  • Entanglement and indistinguishability in a quantum ontology of properties.Sebastian Fortin & Olimpia Lombardi - 2022 - Studies in History and Philosophy of Science Part A 91 (C):234-243.
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  • Quantum modal indeterminacy.Claudio Calosi - 2022 - Studies in History and Philosophy of Science Part A 95 (C):177-184.
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  • Barren Worlds: The Scientific Image of Ontic Structural Realism.Federico Benitez - 2022 - Disputatio 14 (65):65-90.
    This work explores issues with the eliminativist formulation of ontic structural realism. An ontology that totally eliminates objects is found lacking by arguing, first, that the theoretical frameworks used to support the best arguments against an object-oriented ontology (quantum mechanics, relativity theory, quantum field theory) can be seen in every case as physical models of empty worlds, and therefore do not represent all the information that comes from science, and in particular from fundamental physics, which also includes information about local (...)
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