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  1. Reversing the arrow of time.Bryan W. Roberts - 2022 - Cambridge: Cambridge University Press.
    'The arrow of time' refers to the curious asymmetry that distinguishes the future from the past. Reversing the Arrow of Time argues that there is an intimate link between the symmetries of 'time itself' and time reversal symmetry in physical theories, which has wide-ranging implications for both physics and its philosophy. This link helps to clarify how we can learn about the symmetries of our world, how to understand the relationship between symmetries and what is real, and how to overcome (...)
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  • The gauge argument: A Noether Reason.Henrique Gomes, Bryan W. Roberts & Jeremy Butterfield - 2022 - In James Read & Nicholas J. Teh (eds.), The physics and philosophy of Noether's theorems. Cambridge: Cambridge University Press. pp. 354-377.
    Why is gauge symmetry so important in modern physics, given that one must eliminate it when interpreting what the theory represents? In this paper we discuss the sense in which gauge symmetry can be fruitfully applied to constrain the space of possible dynamical models in such a way that forces and charges are appropriately coupled. We review the most well-known application of this kind, known as the 'gauge argument' or 'gauge principle', discuss its difficulties, and then reconstruct the gauge argument (...)
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  • The Classical Limit as an Approximation.Benjamin H. Feintzeig - 2020 - Philosophy of Science 87 (4):612-639.
    I argue that it is possible to give an interpretation of the classical ℏ→0 limit of quantum mechanics that results in a partial explanation of the success of classical mechanics. The interpretation...
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  • Quantum symmetry breaking and physical inequivalence: the case of ferromagnetism.Giovanni Valente - 2020 - Synthese 198 (9):8127-8148.
    This paper discusses an outstanding issue in philosophy of physics concerning the relation between quantum symmetries and the notion of physical equivalence. Specifically, it deals with a dilemma arising for quantum symmetry breaking that was posed by Baker, who claimed that if two ground states are connected by a symmetry, even when it is broken, they must be physically equivalent. However, I argue that the dilemma is just apparent. In fact, I object to Baker’s conclusion by showing that the two (...)
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  • On Representational Capacities, with an Application to General Relativity.Samuel C. Fletcher - 2020 - Foundations of Physics 50 (4):228-249.
    Recent work on the hole argument in general relativity by Weatherall has drawn attention to the neglected concept of models’ representational capacities. I argue for several theses about the structure of these capacities, including that they should be understood not as many-to-one relations from models to the world, but in general as many-to-many relations constrained by the models’ isomorphisms. I then compare these ideas with a recent argument by Belot for the claim that some isometries “generate new possibilities” in general (...)
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  • The Status of Scaling Limits as Approximations in Quantum Theories.Benjamin Feintzeig - unknown
    This paper attempts to make sense of a notion of ``approximation on certain scales'' in physical theories. I use this notion to understand the classical limit of ordinary quantum mechanics as a kind of scaling limit, showing that the mathematical tools of strict quantization allow one to make the notion of approximation precise. I then compare this example with the scaling limits involved in renormalization procedures for effective field theories. I argue that one does not yet have the mathematical tools (...)
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