Results 11 to 20 of about 748,306 (335)
Quantum Spin Dynamics and Quantum Computation [PDF]
Journal of the Physical Society of Japan, 1999 We describe a simulation method for a quantum spin model of a generic, general purpose quantum computer. The use of this quantum computer simulator is illustrated through several implementations of Grover's database search algorithm. Some preliminary results on the stability of quantum algorithms are presented.
de Raedt, H.A. +4 more
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Quantum channel correction outperforming direct transmission
Nature Communications, 2022 Quantum channel correction could provide a remedy to unavoidable losses in long-distance quantum communication, but the break-even point has escaped demonstration so far.
Sergei Slussarenko +7 more
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Quantum inflaton dynamics [PDF]
Physical Review D, 1998 We show that the quantum dynamics of a real scalar field for a large class of potentials in the symmetric Gaussian state, where the nonperturbative quantum contributions are taken into account, can be described equivalently by a two-dimensional nonlinear dynamical system with a definite angular momentum (U(1) charge of a complex theory).
Bak, Dongsu +4 more
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Quantifying Athermality and Quantum Induced Deviations from Classical Fluctuation Relations
Entropy, 2020 In recent years, a quantum information theoretic framework has emerged for incorporating non-classical phenomena into fluctuation relations. Here, we elucidate this framework by exploring deviations from classical fluctuation relations resulting from the
Zoë Holmes +3 more
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Foundations of Physics, 2023 Quantum uncertainty relations have deep-rooted significance on the formalism of quantum mechanics. Heisenberg's uncertainty relations attracted a renewed interest for its applications in quantum information science. Robertson derived a general form of Heisenberg's uncertainty relations for a pair of arbitrary observables represented by Hermitian ...
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NON-COMMUTATIVE QUANTUM DYNAMICS [PDF]
Modern Physics Letters A, 1993 We described a q-deformation of a quantum dynamics in one dimension. We prove that there exists only one essential deformation of quantum dynamics.
Rembieliński, Jakub +1 more
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Nonlinear quantum dynamics [PDF]
, 2006 The vast majority of the literature dealing with quantum dynamics is concerned with linear evolution of the wave function or the density matrix. A complete dynamical description requires a full understanding of the evolution of measured quantum systems, necessary to explain actual experimental results.
Habib, Salman +10 more
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DYNAMIC QUANTUM LOGIC FOR QUANTUM PROGRAMS [PDF]
International Journal of Quantum Information, 2004 We present a way to apply quantum logic to the study of quantum programs. This is made possible by using an extension of the usual propositional language in order to make transformations performed on the system appear explicitly. This way, the evolution of the system becomes part of the logical study. We show how both unitary operations and two-valued
Brunet, Olivier, Jorrand, Philippe
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Path integral formulation for quantum nonadiabatic dynamics and the mixed quantum-classical limit [PDF]
, 2007 This work identifies geometric effects on dynamics due to nonadiabatic couplings in Born Oppenheimer systems and provides a systematic method for deriving corrections to mixed quantum-classical methods. Specifically, an exact path integral formulation of
Krishna, Vinod
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Deterministic constant-temperature dynamics for dissipative quantum systems [PDF]
, 2007 A novel method is introduced in order to treat the dissipative dynamics of quantum systems interacting with a bath of classical degrees of freedom.
Aleksandrov I V +16 more
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