
4An InteractionFree Quantum MeasurementDriven EngineFoundations of Physics 50 (11): 12941314. 2020.Recently highlyefficient quantum engines were devised by exploiting the stochastic energy changes induced by quantum measurement. Here we show that such an engine can be based on an interactionfree measurement, in which the meter seemingly does not interact with the measured object. We use a modified version of the Elitzur–Vaidman bomb tester, an interferometric setup able to detect the presence of a bomb triggered by a single photon without exploding it. In our case, a quantum bomb subject to…Read more

54Reformulating Bell's theorem: The search for a truly local quantum theoryStudies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 70 3950. 2020.The apparent nonlocality of quantum theory has been a persistent concern. Einstein et al. and Bell 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 on three axioms, local causality, no superdeterminism, and one world. Although Bell is often taken to have s…Read more

17An Ontology of Nature with Local Causality, Parallel Lives, and Many Relative WorldsFoundations of Physics 48 (12): 16981730. 2018.Parallel lives is an ontological model of nature in which quantum mechanics and special relativity are unified in a single universe with a single spacetime. Pointlike objects called lives are the only fundamental objects in this spacetime, and they propagate at or below c, and interact with one another only locally at pointlike events in spacetime, very much like classical point particles. Lives are not alive in any sense, nor do they possess consciousness or any agency to make decisions—th…Read more

18Parity Proofs of the Kochen–Specker Theorem Based on the 120CellFoundations of Physics 44 (10): 10851095. 2014.It is shown how the 300 rays associated with the antipodal pairs of vertices of a 120cell (a fourdimensional regular polytope) can be used to give numerous “parity proofs” of the Kochen–Specker theorem ruling out the existence of noncontextual hidden variables theories. The symmetries of the 120cell are exploited to give a simple construction of its Kochen–Specker diagram, which is exhibited in the form of a “basis table” showing all the orthogonalities between its rays. The basis table consi…Read more

18Parity Proofs of the KochenSpecker Theorem Based on the 24 Rays of PeresFoundations of Physics 41 (12): 17861799. 2011.A diagrammatic representation is given of the 24 rays of Peres that makes it easy to pick out all the 512 parity proofs of the KochenSpecker theorem contained in them. The origin of this representation in the fourdimensional geometry of the rays is pointed out

47Parity Proofs of the BellKochenSpecker Theorem Based on the 600cellFoundations of Physics 41 (5): 883904. 2011.The set of 60 real rays in four dimensions derived from the vertices of a 600cell is shown to possess numerous subsets of rays and bases that provide basiscritical parity proofs of the BellKochenSpecker (BKS) theorem (a basiscritical proof is one that fails if even a single basis is deleted from it). The proofs vary considerably in size, with the smallest having 26 rays and 13 bases and the largest 60 rays and 41 bases. There are at least 90 basic types of proofs, with each coming in a numb…Read more

Chapman UniversityPostdoctoral fellow
Orange, California, United States of America
Areas of Interest
Philosophy of Physical Science 
General Philosophy of Science 