•  54
    Reformulating Bell's theorem: The search for a truly local quantum theory
    Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 70 39-50. 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 Everett-inspired many worlds interpretation try to circumvent it. In this paper, we review Bell's "no-go" 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
  •  47
    Parity Proofs of the Bell-Kochen-Specker Theorem Based on the 600-cell
    with P. K. Aravind, Norman D. Megill, and Mladen Pavičić
    Foundations of Physics 41 (5): 883-904. 2011.
    The set of 60 real rays in four dimensions derived from the vertices of a 600-cell is shown to possess numerous subsets of rays and bases that provide basis-critical parity proofs of the Bell-Kochen-Specker (BKS) theorem (a basis-critical 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
  •  18
    Parity Proofs of the Kochen-Specker Theorem Based on the 24 Rays of Peres
    with P. K. Aravind
    Foundations of Physics 41 (12): 1786-1799. 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 Kochen-Specker theorem contained in them. The origin of this representation in the four-dimensional geometry of the rays is pointed out
  •  18
    Parity Proofs of the Kochen–Specker Theorem Based on the 120-Cell
    with P. K. Aravind
    Foundations of Physics 44 (10): 1085-1095. 2014.
    It is shown how the 300 rays associated with the antipodal pairs of vertices of a 120-cell (a four-dimensional 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 120-cell 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
  •  17
    Parallel lives is an ontological model of nature in which quantum mechanics and special relativity are unified in a single universe with a single space-time. Point-like objects called lives are the only fundamental objects in this space-time, and they propagate at or below c, and interact with one another only locally at point-like events in space-time, 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
  •  4
    An Interaction-Free Quantum Measurement-Driven Engine
    with Cyril Elouard, Benjamin Huard, and Andrew N. Jordan
    Foundations of Physics 50 (11): 1294-1314. 2020.
    Recently highly-efficient 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 interaction-free 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