样式： 排序： IF:  GO 导出 标记为已读

A stronger Bell argument for (some kind of) parameter dependence Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20201016
Paul M. NägerIt is widely accepted that the violation of Bell inequalities excludes local theories of the quantum realm. This paper presents a new derivation of the inequalities from nontrivial nonlocal theories and formulates a stronger Bell argument excluding also these nonlocal theories. Taking into account all possible theories, the conclusion of this stronger argument provably is the strongest possible

Completely real? A critical note on the claims by Colbeck and Renner Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20201102
R. HermensIn a series of papers Colbeck and Renner (2011, 2015a, 2015b) claim to have shown that the quantum state provides a complete description for the prediction of future measurement outcomes. In this paper I argue that thus far no solid satisfactory proof has been presented to support this claim. Building on the earlier work of Leifer (2014), Landsman (2015) and Leegwater (2016), I present and prove two

Separating Einstein's separability Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20201112
Sebastián Murgueitio RamírezIn this paper, I accomplish a conceptual task and a historical task. The conceptual task is to argue that (1) Einstein's Principle of Separability (henceforth “separability”) is not a supervenience principle and that (2) separability and entanglement are compatible. I support (1) by showing that the conclusion of Einstein's incompleteness argument would still follow even if one assumes that the state

Cartography of the space of theories: An interpretational chart for fields that are both (dark) matter and spacetime Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20201213
Niels C.M. Martens, Dennis LehmkuhlThis paper pushes back against the DemocriteanNewtonian tradition of assuming a strict conceptual dichotomy between spacetime and matter. Our approach proceeds via the more narrow distinction between modified gravity/spacetime (MG) and dark matter (DM). A prequel paper argued that the novel field Φ postulated by Berezhiani and Khoury’s ‘superfluid dark matter theory’ is as much (dark) matter as anything

Dark matter = modified gravity? Scrutinising the spacetime–matter distinction through the modified gravity/ dark matter lens Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20201103
Niels C.M. Martens, Dennis LehmkuhlThis paper scrutinises the tenability of a strict conceptual distinction between space(time) and matter via the lens of the debate between modified gravity and dark matter. In particular, we consider Berezhiani and Khoury's novel ‘superfluid dark matter theory’ (SFDM) as a case study. Two families of criteria for being matter and being spacetime, respectively, are extracted from the literature. Evaluation

The dynamical approach to spin2 gravity Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200928
Kian SalimkhaniThis paper engages with the following closely related questions that have recently received some attention in the literature: (a) what is the status of the equivalence principle in general relativity (GR)?; (b) how does the metric field obtain its property of being able to act as a metric?; and (c) is the metric of GR derivative on the dynamics of the matter fields? The paper attempts to complement

Definitions more geometrarum and Newton's scholium on space and time Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200924
Zvi BienerNewton's Principia begins with eight formal definitions and a scholium, the socalled scholium on space and time. Despite a history of misinterpretation, scholars now largely agree that the purpose of the scholium is to establish and defend the definitions of key concepts. There is no consensus, however, on how those definitions differ in kind from the Principia's formal definitions and why they are

The philosophical underpinning of the absorber theory of radiation Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200909
Marco ForgioneThe paper considers the absorber theory of radiation by (Wheeler and Feynman 1945) and (Wheeler and Feynman 1949) and advances the idea that the theory is grounded on the philosophical intuition of overall processes. Such intuition consists of having to consider advanced and retarded radiation as well as the interaction between absorbers and emitter. I discuss the discrepancy between microdynamic timesymmetry

Jump ship, shift gears, or just keep on chugging: Assessing the responses to tensions between theory and evidence in contemporary cosmology Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200908
Siska De Baerdemaeker, Nora Mills BoydWhen is it reasonable to abandon a scientific research program? When would it be premature? We take up these questions in the context of a contemporary debate at the border between astrophysics and cosmology, the socalled “smallscale challenges” to the concordance model of cosmology (ΛCDM) and its cold dark matter paradigm. These challenges consist in discrepancies between the outputs of leading

Constancy of the speed of light and the unit matching problem Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200827
Alon DrorySpacetime symmetries and the principle of relativity alone suffice to obtain Lorentzlike coordinate transformations, in which a free parameter, k, plays the part of c−2 in special relativity. Several authors have concluded that special relativity does not need the postulate of the constancy of the speed of light (the “second postulate”). I oppose this claim and argue that the transformations have

Nonempirical robustness arguments in quantum gravity Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200820
Niels S. LinnemannIn the first part of the article, I illustrate and assess instances of nonempirical robustness analysis as they occur within and across different theories of quantum gravity. The endeavour is expected to offer insights into the actual role robustness analysis plays in nonempirical theory development where motivation and theory development are not reactions to straightforward empirical problems. In

Wigner's convoluted friends Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200820
R. Muciño, E. OkonConsidering a complicated extension of a Wigner's friend scenario, Frauchiger and Renner (FR) allegedly showed that “quantum theory cannot consistently describe the use of itself.” However, such a result has been under severe criticism, as it has been convincingly argued to crucially depend on an implicit, nontrivial assumption regarding details of the collapse mechanism. In consequence, the result

When do Gibbsian phase averages and Boltzmannian equilibrium values agree? Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200721
Charlotte Werndl, Roman FriggThis paper aims to shed light on the relation between Boltzmannian statistical mechanics and Gibbsian statistical mechanics by studying the Mechanical Averaging Principle, which says that, under certain conditions, Boltzmannian equilibrium values and Gibbsian phase averages are approximately equal. What are these conditions? We identify three conditions each of which is individually sufficient (but

Newton's early metaphysics of body: Impenetrability, action at a distance, and essential gravity Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200715
Elliott D. ChenIn this paper, I discuss Newton's conception of body in De gravitatione and its relation to the legitimacy of action at a distance. Howard Stein has argued that such a conception privileges contact over distant action: by dint of being impenetrable, bodies must necessarily act through contact; yet there is no analogous property of which action at a distance is a consequence. This paper presents a challenge

Quantum relational indeterminacy Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200711
Claudio Calosi, Cristian MarianiThe paper presents the first thorough investigation of quantum metaphysical indeterminacy (MI) in the context of the Relational Interpretation of Quantum Mechanics (RQM). We contend that the interaction between MI and RQM is mutually beneficial. On the one hand, MI provides a metaphysical framework for RQM that has been neglected in the literature, and that promises to undermine some objections that

Absolute space and Newton's theory of relativity Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200629
Robert DiSalleNewton's metaphysical picture of space and time provides the conceptual background for his theory of motion. Philosophical discussions of absolute space and time, however, underemphasize Newton's concern with the relativity of motion. From a modern perspective, this is usually seen as a concern that Newton himself did not take seriously enough, especially in comparison with contemporaries such as Huygens

Some reflections on the structure of cosmological knowledge Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200617
Chris SmeenkStein has characterized one of the central problems in accounting for our knowledge in physics as that of getting the laboratory, or observatory, inside the theory — that is, of understanding how the mathematical structures of fundamental physical theories have empirical content. He has argued that physicists respond to this problem by giving schematic representations of observers and experiments.

‘Like thermodynamics before Boltzmann.’ On the emergence of Einstein's distinction between constructive and principle theories Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200610
Marco GiovanelliIn a 1919 article for the Times of London, Einstein declared the relativity theory to be a ‘principle theory’, like thermodynamics, rather than a ‘constructive theory’, like the kinetic theory of gases. The present paper attempts to trace back the prehistory of this famous distinction. It provides a systematic overview of Einstein's repeated use of the relativity theory/thermodynamics analysis after

“— It would be possible to do a lengthy dialectical number on this;” Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200604
Wayne C. MyrvoldPhilosophers have, it seems, been beguiled by contingencies of the evolution of scientific language. These contingencies can obscure the nature of theoretical shifts. Retention of a term can obscure a radical theoretical shift, and abandonment of a term can obscure continuity of theory. In this paper, I consider the cases of caloric and the luminiferous ether, both of which are often taken to be unproblematic

Holography without holography: How to turn interrepresentational into intratheoretical relations in AdS/CFT Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200601
Rasmus Jaksland, Niels S. LinnemannWe show by means of the AdS/CFT correspondence in the context of quantum gravity how interrepresentational relations—loosely speaking relations among different equivalent representations of one and the same physics—can play out as a tool for intratheoretical developments and thus boost theory development in the context of discovery. More precisely, we first show that, as a duality, the AdS/CFT correspondence

Effective field theories as a novel probe of finetuning of cosmic inflation Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200518
Feraz AzharThe leading account of several salient observable features of our universe today is provided by the theory of cosmic inflation. But an important and thus far intractable question is whether inflation is generic, or whether it is finely tuned—requiring very precisely specified initial conditions. In this paper I argue that a recent, modelindependent characterization of inflation—that treats inflation

Bohm's theory of quantum mechanics and the notion of classicality Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200513
Marij van StrienWhen David Bohm published his alternative theory of quantum mechanics in 1952, it was not received well; a recurring criticism was that it formed a reactionary attempt to return to classical physics. In response, Bohm emphasized the progressiveness of his approach, and even turned the accusation of classicality around by arguing that he wanted to move beyond classical elements still inherent in orthodox

Hamiltonian mechanics is conservation of information entropy Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200510
Gabriele Carcassi, Christine A. AidalaIn this work we show the equivalence between Hamiltonian mechanics and conservation of information entropy. We will show that distributions with coordinate independent values for information entropy require that the manifold on which the distribution is defined is charted by conjugate pairs (i.e. it is a symplectic manifold). We will also show that further requiring that the information entropy is

The concept ‘indistinguishable’ Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200429
Simon SaundersThe concept of indistinguishable particles in quantum theory is fundamental to questions of ontology. All ordinary matter is made of electrons, protons, neutrons, and photons and they are all indistinguishable particles. Yet the concept itself has proved elusive, in part because of the interpretational difficulties that afflict quantum theory quite generally, and in part because the concept was so

Spacetime as a quantum errorcorrecting code? Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200426
Jonathan BainThis essay considers an interpretation of the AdS/CFT correspondence under which the bulk and the boundary emerge from a more fundamental discrete system that realizes the structure of an erasureprotection quantum errorcorrecting code (QECC). I consider the extent to which this view underwrites the claim that spacetime is a QECC (as some authors have suggested), and how it fits into recent schemes

Loop quantum ontology: Spacetime and spinnetworks Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200425
Joshua NortonIt is standardly claimed in loop quantum gravity (LQG) that spacetime both disappears, fundamentally, and emerges from spinnetworks in the low energy regime. In this paper, I critically explore these claims and develop a variety of substantival and relational interpretations of LQG for which these claims are false. According to most of the interpretations I consider, including the “received interpretation”

Redundant epistemic symmetries Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200409
James Read, Thomas MøllerNielsenWe undertake a detailed analysis of three ‘epistemic’ approaches to symmetries, due, respectively, to Ismael and van Fraassen, Caulton, and Dasgupta. Finding faults with each, we proceed to develop our own epistemic approach to symmetries. Having done so, we present a concern regarding all epistemic accounts: they render the notion of a symmetry transformation redundant as a tool for metaphysical theorising

Some Philosophical Prehistory of the (EarmanNorton) hole argument Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200320
James Owen WeatherallThe celu of the philosophical literature on the hole argument is the 1987 paper by Earman & Norton [“What Price Spacetime Substantivalism? The Hole Story” Br. J. Phil. Sci]. This paper has a wellknown backstory, concerning work by Stachel and Norton on Einstein's thinking in the years 1913–15. Less wellknown is a connection between the hole argument and Earman's work on Leibniz in the 1970s and

An unpublished debate brought to light: Karl Popper's enterprise against the logic of quantum mechanics Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200319
Flavio Del SantoKarl Popper published, in 1968, a paper that allegedly found a flaw in a very influential article of Birkhoff and von Neumann, which pioneered the field of “quantum logic”. Nevertheless, nobody rebutted Popper's criticism in print for several years. This has been called in the historiographical literature an “unsolved historical issue”. Although Popper's proposal turned out to be merely based on misinterpretations

Reformulating Bell's theorem: The search for a truly local quantum theory Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200317
Mordecai Waegell, Kelvin J. McQueenThe apparent nonlocality of quantum theory has been a persistent concern. Einstein et al. (1935) and Bell (1964) emphasized the apparent nonlocality arising from entanglement correlations. While some interpretations embrace this nonlocality, modern variations of the Everettinspired many worlds interpretation try to circumvent it. In this paper, we review Bell's “nogo” theorem and explain how it rests

The metaphysics of invariance Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200317
David SchroerenFundamental physics contains an important link between properties of elementary particles and continuous symmetries of particle systems. For example, properties such as mass and spin are said to be 'associated' with specific continuous symmetries. This link has played a key role in the discovery of various new particle kinds, but more importantly: it is thought to provide a deep insight into the nature

MOND vs. dark matter in light of historical parallels Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200306
Mordehai MilgromMOND is a paradigm that contends to account for the mass discrepancies in the Universe without invoking ‘dark’ components, such as ‘dark matter’ and ‘dark energy’. It does so by supplanting Newtonian dynamics and General Relativity, departing from them at very low accelerations. Having in mind readers who are historians and philosophers of science, as well as physicists and astronomers, I describe

Diagnosing disagreements: The authentication of the positron 1931–1934 Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200208
AnaMaria CreţuThis paper bridges a historiographical gap in accounts of the prediction and discovery of the positron by combining three ingredients. First, the prediction and discovery of the positron are situated in the broader context of a period of ‘crystallisation’ of a research tradition. Second, the prediction and discovery of the positron are discussed in the context of the ‘authentication’ of the particle

Probing novelty at the LHC: Heuristic appraisal of disruptive experimentation Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200201
Sophie RitsonAbtract In this paper, ‘novelty’ is explored through a recent historical episode from high energy experimental physics to offer an understanding of novelty as disruption. I call this the ‘750 GeV episode’, an episode where two Large Hadron Collider (LHC) experiments, CMS and ATLAS, each independently observed indications of a new resonance at approximately 750 GeV. With further data collection, the

Model landscapes and event signatures in elementary particle physics Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200201
Peter Mättig, Michael StöltznerAbstract The current state of particle physics is conflicting. One has a marvellously working theory, the Standard Model, that leaves many questions open. This tension has led to a variegated landscape of models of physics beyond the Standard Model that is guided by epistemic and pragmatic values of model preference. Whereas these preferences are shared by experimentalists and theorists, their use

Histories, dynamical laws, and initial conditions −Invariance under timereversibility and its failure in Markov processes, with application to the second law of thermodynamics and the past hypothesis Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200201
Elliott SoberAbstract A Markov process can be invariant under time reversal and it also can exhibit a failure of invariance that is “uniformly positive.” I show how each of these possibilities contributes to the project of deciding when a temporal sequence of states has a higher probability than its mirror image. Neither suffices, but a distinct property of the Markov process completes the project, namely the unconditional

Unweyling Three Mysteries of Nordström Gravity Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200201
Patrick M. DuerrAbstract The paper reexamines Nordstrom's scalar theory of gravity (NG) – arguably the most convincing relativistic theory of gravity before the advent of General Relativity. It exists in two different formulations. In Nordstrom's original one (1913), NG appears to describe a scalar gravitational field on Minkowski spacetime. In Einstein and Fokker’s (1914) version, NG seems to be a spacetime theory:

Large gauge transformations and the strong CP problem Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200201
John DoughertyAbstract According to the Standard Model of particle physics, some gauge transformations are physical symmetries. That is, they are mathematical transformations that relate representatives of distinct physical states of affairs. This is at odds with the standard philosophical position according to which gauge transformations are an eliminable redundancy in a gauge theory's representational framework

On the status of conservation laws in physics: Implications for semiclassical gravity Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200201
Tim Maudlin, Elias Okon, Daniel SudarskyWe start by surveying the history of the idea of a fundamental conservation law and briefly examine the role conservation laws play in different classical contexts. In such contexts we find conservation laws to be useful, but often not essential. Next we consider the quantum setting, where the conceptual problems of the standard formalism obstruct a rigorous analysis of the issue. We then analyze the

Conceptual analysis of black hole entropy in string theory Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200201
Sebastian De Haro, Jeroen van Dongen, Manus Visser, Jeremy ButterfieldThe microscopic state counting of the extremal ReissnerNordstrom black hole performed by Andrew Strominger and Cumrun Vafa in 1996 has proven to be a central result in string theory. Here, with a philosophical readership in mind, the argument is presented in its contemporary context and its rather complex conceptual structure is analysed. In particular, we will identify the various intertheoretic

Emergence and correspondence for string theory black holes Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200201
Jeroen van Dongen, Sebastian De Haro, Manus Visser, Jeremy ButterfieldThis is one of a pair of papers that give a historicalcumphilosophical analysis of the endeavour to understand black hole entropy as a statistical mechanical entropy obtained by counting stringtheoretic microstates. Both papers focus on Andrew Strominger and Cumrun Vafa's groundbreaking 1996 calculation, which analysed the black hole in terms of Dbranes. The first paper gives a conceptual analysis

Sensible quantum experiences: Encounters with Stein's philosophy of quantum mechanics Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200201
Thomas PashbyAbstract This paper develops an approach to the interpretation of quantum mechanics inspired by the philosophy of Howard Stein. Taking up Stein’s (1994) call to schematize the observer and the observation, I introduce a class of observables called ‘sensibles’ which provide a means to assign probabilities to an observer's experiences of experimental phenomena. In particular, sensibles provide an assignment

Expanding theory testing in general relativity: LIGO and parametrized theories Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200201
Lydia PattonAbstract The multiple detections of gravitational waves by LIGO (the Laser Interferometer GravitationalWave Observatory), operated by Caltech and MIT, have been acclaimed as confirming Einstein's prediction, a century ago, that gravitational waves propagating as ripples in spacetime would be detected. Yunes and Pretorius (2009) investigate whether LIGO's templatebased searches encode fundamental

Putting positrons into classical Dirac field theory Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20200201
Charles T. SebensOne way of arriving at a quantum field theory of electrons and positrons is to take a classical theory of the Dirac field and then quantize. Starting with the standard classical field theory and quantizing in the most straightforward way yields an inadequate quantum field theory. It is possible to fix this theory by making some modifications (such as redefining the operators for energy and charge)

What's left for the neoCopenhagen theorist Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20191225
Michael DascalFrauchiger and Renner (2018) argue that no ‘singleworld’ theory can consistently maintain quantum mechanical predictions for all systems. Following Bub (2017, 2018, 2019), I argue here that this is overstated, and use their result to develop a framework for neoCopenhagen theories that avoid the problem. To describe the framework I introduce two concepts, ontological information deficits, and information

On the reduction of general relativity to Newtonian gravitation Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20191101
Samuel C. FletcherAbstract Intertheoretic reduction in physics aspires to be both to be explanatory and perfectly general: it endeavors to explain why an older, simpler theory continues to be as successful as it is in terms of a newer, more sophisticated theory, and it aims to relate or otherwise account for as many features of the two theories as possible. Despite often being introduced as straightforward cases of

Timelike entanglement for delayedchoice entanglement swapping Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20191101
David GlickAbstract Experiments involving delayedchoice entanglement swapping seem to suggest that particles can become entangled after they've already been detected. This astonishing result is taken by some to undermine realism about entanglement. In this paper, I argue that one can offer a fully realist explanation of delayedchoice entanglement swapping by countenancing timelike entanglement relations. I

Renormalization scrutinized Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20191101
Sébastien RivatIn this paper, I propose a general framework for understanding renormalization by drawing on the distinction between effective and continuum Quantum Field Theories (QFTs), and offer a comprehensive account of perturbative renormalization on this basis. My central claim is that the effective approach to renormalization provides a more physically perspicuous, conceptually coherent and widely applicable

How electrons spin Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20191101
Charles T. SebensThere are a number of reasons to think that the electron cannot truly be spinning. Given how small the electron is generally taken to be, it would have to rotate superluminally to have the right angular momentum and magnetic moment. Also, the electron's gyromagnetic ratio is twice the value one would expect for an ordinary classical rotating charged body. These obstacles can be overcome by examining

The charm quark as a naturalness success Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20191101
Miguel Ángel Carretero SahuquilloAbstract Undeniably, the naturalness principle has had a major role in particle physics during the last decades, in particular in model building. Nowadays, one can find a wide range of different definitions. Some of them seem mutually exclusive, but traditionally, its notion has been linked to the finetuning problem. Understanding naturalness as the imposition that finetuning problems have to vanish

Validity of the Einstein hole argument Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20191101
Oliver Davis JohnsArguing from his "hole" thought experiment, Einstein became convinced that, in cases in which the energymomentumtensor source vanishes in a spacetime hole, a solution to his general relativistic field equation cannot be uniquely determined by that source. After reviewing the definition of active diffeomorphisms, this paper uses them to outline a mathematical proof of Einstein's result. The relativistic

Imprints of the underlying structure of physical theories Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20191101
Jorge ManeroAbstract In the context of scientific realism, this paper intends to provide a formal and accurate description of the structuralbased ontology posited by classical mechanics, quantum mechanics and special relativity, which is preserved across the empirical domains of these theories and explain their successful predictions. Along the lines of ontic structural realism, such a description is undertaken

The physics of implementing logic: Landauer's principle and the multiplecomputations theorem Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20191101
Meir Hemmo, Orly ShenkerAbstract This paper makes a novel linkage between the multiplecomputations theorem in philosophy of mind and Landauer's principle in physics. The multiplecomputations theorem implies that certain physical systems implement simultaneously more than one computation. Landauer's principle implies that the physical implementation of “logically irreversible” functions is accompanied by minimal entropy

Deciphering the algebraic CPT theorem Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20191101
Noel SwansonAbstract The CPT theorem states that any causal, Lorentzinvariant, thermodynamically wellbehaved quantum field theory must also be invariant under a reflection symmetry that reverses the direction of time (T), flips spatial parity (P), and conjugates charge (C). Although its physical basis remains obscure, CPT symmetry appears to be necessary in order to unify quantum mechanics with relativity. This

Frames and stresses in Einstein's quest for a generalized theory of relativity Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20191101
Olivier DarrigolAbstract We already have extraordinarily detailed and competent accounts of the genesis of general relativity, and a few suggestive summaries of these accounts. This article offers a mediumsized, matteroffact account, followed by a critical commentary and a pockethistory for the hurried physicist. It is based on an independent study of Einstein's relevant writings, with special attention to his

Dialogue concerning magnetic forces Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20191101
Georg LentzeAbstract The question of how best to explain magnetic forces between uniformly moving charges has divided physicists. A fictitious dialogue styled on David Hume's Dialogues Concerning Natural Religion (1779) crystallises the various views expressed in the literature around three positions: a) special relativity can explain such forces as a relativistic aspect of electricity; b) special relativity cannot

Newton's numerator in 1685: A year of gestation Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20191101
George E. SmithAbstract In his “‘From the Phenomena of Motions to the Forces of Nature’: Hypothesis or Deduction?” of 1990 Howard Stein reinvigorated a centuriesold dispute over whether Newton had derived his law of gravity from phenomena. More specifically, Stein – like such notables before him as Euler – challenged whether any phenomenon involving gravity served as a basis for Newton inferring that his third law

Is Bananaworld nonlocal? Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20190925
Allen StairsJeffrey Bub (2018) investigates what we can learn about quantum mechanics from the structure of the correlations it predicts and apart from its detailed mathematical machinery. The present discussion is in the spirit of Bub's project. I examine two arguments, one from Clifton, Pagonis and Pitowsky (1992), and the other from Maudlin (2014). If either is correct, the nonsignaling correlations by themselves

A remark on ‘time machines’ in honor of Howard Stein Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20190801
JB ManchakA framework for investigating Stein’s question – often interpreted to be a question concerning the possibility of ‘time machines’ – has been developed by John Earman and others. I’ll be working within that framework today. I hope to give a sense on where things stand in 2017 and articulate possible avenues for future work as well. My thesis is threefold. First, there is a sense in which there are

A note on rods and clocks in Newton's Principia Stud. Hist. Philos. Sci. Part B Stud. Hist. Philos. Mod. Phys. (IF 1.663) Pub Date : 20190801
Katherine BradingThere is an asymmetry in Newton's Principia between the status of rods and that of clocks. This can be seen by considering issues highlighted by Harvey Brown in his book Physical Relativity, in which he emphasizes the importance of thinking carefully about the relationships between themetrics of space and time, the spatial and temporal behaviors of rods and clocks, and dynamics. Brown's book focuses