Results 31 to 40 of about 8,735 (248)
Quantum decoherence by Coulomb interaction
New Journal of Physics, 2020 The performance of modern quantum devices in communication, metrology or microscopy relies on the quantum–classical interaction which is generally described by the theory of decoherence.
N Kerker +4 more
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Decoherence in quantum Markov chains [PDF]
Quantum Information Processing, 2013 It is known that under some assumptions the hitting time in quantum Markov chains is quadratically smaller than the hitting time in classical Markov chains. This work extends this result for decoherent quantum Markov chains. The decoherence is introduced using a percolation-like graph model, which allows us to define a decoherent quantum hitting time ...
Santos, Raqueline Azevedo Medeiros +2 more
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Decoherence of cosmological perturbations from boundary terms and the non-classicality of gravity
Journal of High Energy Physics, 2023 We note that the decoherence of inflationary curvature perturbation ζ is dominated by a boundary term of the gravity action. Although this boundary term cannot affect cosmological correlators 〈ζ n 〉, it induces much faster decoherence for ζ than that of ...
Chon Man Sou, Duc Huy Tran, Yi Wang
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Can Decoherence Solve the Measurement Problem?
Quanta, 2022 The quantum decoherence program has become more attractive in providing an acceptable solution for the long-standing quantum measurement problem.
Mani Lal Bhaumik
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IEEE Access, 2020 Quantum information is prone to suffer from errors caused by the so-called decoherence, which describes the loss in coherence of quantum states associated to their interactions with the surrounding environment.
Josu Etxezarreta Martinez +3 more
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Microscopic and macroscopic effects in the decoherence of neutrino oscillations
Journal of High Energy Physics, 2022 We present a generic structure (the layer structure) for decoherence effects in neutrino oscillations, which includes decoherence from quantum mechanical and classical uncertainties. The calculation is done by combining the concept of open quantum system
Ting Cheng +2 more
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Does Decoherence Select the Pointer Basis of a Quantum Meter?
Entropy, 2022 The consensus regarding quantum measurements rests on two statements: (i) von Neumann’s standard quantum measurement theory leaves undetermined the basis in which observables are measured, and (ii) the environmental decoherence of the measuring device ...
Abraham G. Kofman, Gershon Kurizki
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Non-Markovian decoherent quantum walks [PDF]
Chinese Physics B, 2013 12 pages, 5 figures, new figures and references ...
Xue, Peng, Zhang, Yongsheng
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Black holes decohere quantum superpositions
International Journal of Modern Physics D, 2022 We show that if a massive body is put in a quantum superposition of spatially separated states, the mere presence of a black hole in the vicinity of the body will eventually destroy the coherence of the superposition. This occurs because, in effect, the gravitational field of the body radiates soft gravitons into the black hole, allowing the black ...
Danielson, Daine L. +2 more
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HeliyonIn the aftermath of unparalleled disruptive technologies, the quantum realm has become a fundamental field of research due to unrivaled computational power and super-secure communication.
Muhammad Annas Khan +4 more
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