
76How local are local operations in local quantum field theory?Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 41 (4): 346353. 2010.

54Lanford’s Theorem and the Emergence of IrreversibilityFoundations of Physics 45 (4): 404438. 2015.It has been a longstanding problem to show how the irreversible behaviour of macroscopic systems can be reconciled with the timereversal invariance of these same systems when considered from a microscopic point of view. A result by Lanford shows that, under certain conditions, the famous Boltzmann equation, describing the irreversible behaviour of a dilute gas, can be obtained from the timereversal invariant Hamiltonian equations of motion for the hard spheres model. Here, we examine how and i…Read more

54John von Neumann's mathematical “Utopia” in quantum theoryStudies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 39 (4): 860871. 2008.This paper surveys John von Neumann's work on the mathematical foundations of quantum theories in the light of Hilbert's Sixth Problem concerning the geometrical axiomatization of physics. We argue that in von Neumann's view geometry was so tied to logic that he ultimately developed a logical interpretation of quantum probabilities. That motivated his abandonment of Hilbert space in favor of von Neumann algebras, specifically the type II1II1 factors, as the proper limit of quantum mechanics in i…Read more

53Relativistic Causality in Algebraic Quantum Field TheoryInternational Studies in the Philosophy of Science 28 (1): 148. 2014.This paper surveys the issue of relativistic causality within the framework of algebraic quantum field theory . In doing so, we distinguish various notions of causality formulated in the literature and study their relationships, and thereby we offer what we hope to be a useful taxonomy. We propose that the most direct expression of relativistic causality in AQFT is captured not by the spectrum condition but rather by the axiom of local primitive causality, in that it entails a form of local dete…Read more

37Does the Reeh–Schlieder theorem violate relativistic causality?Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 48 (2): 147155. 2014.

36Can Entanglement Be Destroyed by Any Local Operation in Relativistic Quantum Field Theory?Philosophy of Science 77 (5): 10291041. 2010.This article investigates the nature of entangled correlations in algebraic quantum field theory (AQFT). We define a notion of local disentanglement, expressing the possibility of destroying entanglement by means of local operations. Contrary to the case of ordinary quantum mechanics, local disentanglement cannot be achieved in general in relativistic quantum field theory. However, we show that if the split property holds, there exists a local operation that can destroy entanglement between spac…Read more

25Local disentanglement in relativistic quantum field theoryStudies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 44 (4): 424432. 2013.This paper discusses a claim by Clifton and Halvorson (2001) that, contrary to nonrelativistic quantum mechanics, local operations can never destroy entanglement in relativistic quantum field theory. The impossibility of achieving local disentanglement would raise a threat for the mutual independence between microscopic subsystems. Here, we observe that Clifton and Halvorson nogo result rests on an unnecessarily strong notion of local operations, which we label absolutely local operations, and…Read more

21Is there a stability problem for Bayesian noncommutative probabilities?Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 38 (4): 832843. 2007.

21On the paradox of reversible processes in thermodynamicsSynthese 196 (5): 17611781. 2019.This paper discusses an argument by Norton to the effect that reversible processes in thermodynamics have paradoxical character, due to the infinitetime limit. For Norton, one can “dispel the fog of paradox” by adopting a distinction between idealizations and approximations, which he himself puts forward. Accordingly, reversible processes ought to be regarded as approximations, rather than idealizations. Here, we critically assess his proposal. In doing so, we offer a resolution of his alleged …Read more

14The approach towards equilibrium in Lanford’s theoremEuropean Journal for Philosophy of Science 4 (3): 309335. 2014.This paper develops a philosophical investigation of the merits and faults of a theorem by Lanford , Lanford , Lanford for the problem of the approach towards equilibrium in statistical mechanics. Lanford’s result shows that, under precise initial conditions, the Boltzmann equation can be rigorously derived from the Hamiltonian equations of motion for a hard spheres gas in the BoltzmannGrad limit, thereby proving the existence of a unique solution of the Boltzmann equation, at least for a very …Read more

13Since the 1909 work of Carathéodory, formulations of thermodynamics have gained ground which highlight the role of the the binary relation of adiabatic accessibility between equilibrium states. A feature of Carathéodory's system is that the version therein of the second law contains an ambiguity about the nature of irreversible adiabatic processes, making it weaker than the traditional KelvinPlanck statement of the law. This paper attempts first to clarify the nature of this ambiguity, by defin…Read more

11Relativistic causalityStudies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 48 (2): 101. 2014.

10Restoring particle phenomenologyStudies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 51 97103. 2015.

4John von Neumann's mathematical “Utopia” in quantum theoryStudies in History and Philosophy of Modern Physics 39 (4): 860871. 2007.

2Quantum symmetry breaking and physical inequivalence: the case of ferromagnetismSynthese 122. forthcoming.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 tw…Read more
Pittsburgh, Pennsylvania, United States of America
Areas of Interest
Philosophy of Physical Science 
General Philosophy of Science 