Results 11 to 20 of about 1,036,210 (224)
New Journal of Physics, 2022 Nowadays photon-number resolving weak-field homodyne measurements allow realization of emblematic gedankenexperiments revealing correlations of optical fields.
Tamoghna Das +5 more
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npj Quantum Information, 2022 The problem of achieving security of device-independent (or semi-device-independent) cryptography (for quantum key distribution and randomness generation) against the most general no-signaling adversaries has remained open.
Ravishankar Ramanathan +3 more
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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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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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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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New Journal of Physics, 2022 The paradoxical features of quantum theory are usually formulated for fixed number of particles. While one can now find a formulation of Bell’s theorem for quantum fields, a Kochen–Specker-type reasoning is usually formulated for just one particle, or ...
Konrad Schlichtholz +2 more
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Reverse Engineering Quantum Field Theory [PDF]
AIP Conf. Proc. 1508 (2012) 428-432, 2012 An approach to the foundations of quantum theory is advertised that proceeds by "reverse engineering" quantum field theory. As a concrete instance of this approach, the general boundary formulation of quantum theory is outlined.
arxiv +1 more source
Alternative new notation for quantum information theory [PDF]
International Journal of Theoretical Physics 2007, 2003 A new notation has been introduced for the quantum information theory. By this notation,some calculations became simple in quantum information theory such as quantum swapping, quantum teleportation.
arxiv +1 more source
The Josephson junction as a quantum engine
New Journal of Physics, 2023 We treat the Cooper pairs in the superconducting electrodes of a Josephson junction (JJ) as an open system, coupled via Andreev scattering to external baths of electrons.
Robert Alicki +4 more
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