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General quantum theory—unification of classical and modal quantum theories [PDF]
Journal of Physics A: Mathematical and Theoretical, 2020 Abstract Inspired by classical (‘actual’) quantum theory over C and modal quantum theory (MQT), which is a model
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Bipartite nonlocality with a many-body system
New Journal of Physics, 2019 We consider a bipartite scenario where two parties hold ensembles of 1/2-spins which can only be measured collectively. We give numerical arguments supporting the conjecture that in this scenario no Bell inequality can be violated for arbitrary numbers ...
Enky Oudot +3 more
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Unfree gauge symmetry in the BV formalism
European Physical Journal C: Particles and Fields, 2019 The BV formalism is proposed for the theories where the gauge symmetry parameters are unfree, being constrained by differential equations.
D. S. Kaparulin, S. L. Lyakhovich
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Non-isometric codes for the black hole interior from fundamental and effective dynamics
Journal of High Energy Physics, 2023 We introduce a new holographic map for encoding black hole interiors by including both fundamental and effective dynamics. This holographic map is constructed by evolving a state in the effective, semiclassical gravity description of the interior ...
Oliver DeWolfe, Kenneth Higginbotham
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Quantum traces in quantum Teichmüller theory [PDF]
Algebraic & Geometric Topology, 2010 We prove that for the torus with a hole and the sphere with four holes there is a quantum trace function in the quantum Teichmuller space satisfying the properties proposed by Chekhov and Fock in "Observables in 3D Gravity and Geodesic Algebras".
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Post-quantum steering is a stronger-than-quantum resource for information processing
npj Quantum Information, 2022 We present the first instance where post-quantum steering is a stronger-than-quantum resource for information processing – remote state preparation.
Paulo J. Cavalcanti +4 more
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QUANTUM MECHANICS AS QUANTUM MEASURE THEORY [PDF]
Modern Physics Letters A, 1994 The additivity of classical probabilities is only the first in a hierarchy of possible sum rules, each of which implies its successor. The first and most restrictive sum rule of the hierarchy yields measure theory in the Kolmogorov sense, which is appropriate physically for the description of stochastic processes such as Brownian motion.
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Proposal for demonstration of long-range cluster state entanglement in the presence of photon loss
APL Photonics, 2017 Photonic cluster states are a crucial resource for optical quantum computing. Recently a quantum dot single photon source has been demonstrated to produce strings of single photons in a small linear cluster state.
Thomas Nutz +3 more
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International Journal of Quantum Information, 2019 A discussion of fundamental aspects of quantum theory is presented, stressing the essential role of “events.”
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On Quantum Field Theory. I: Quantum Field Theory as Quantum Mechanics [PDF]
Progress of Theoretical Physics, 1974 Summary: A new approach to finding a steady foundation of quantum field theory is investigated with the help of the so-called nonstandard mathematics. We construct a model of the quantum field theory as a quantum-mechanical system with very many degrees of freedom.
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