Results 61 to 70 of about 746,824 (179)
Witness for initial system-environment correlations in open system dynamics
, 2010 We study the evolution of a general open quantum system when the system and its environment are initially correlated. We show that the trace distance between two states of the open system can increase above its initial value, and derive tight upper ...
Breuer H. P. +9 more
core +1 more source
Fractal Weyl Law for Open Chaotic Maps [PDF]
, 2004 This contribution summarizes our work with M.Zworski on open quantum open chaoticmaps (math-ph/0505034). For a simple chaotic scattering system (the open quantum baker's map), we compute the "long-living resonances" in the semiclassical r\'{e}gime, and ...
Asch, Joachim, Joye, Alain
core +7 more sources
Realization of controllable open system with NMR
New Journal of Physics, 2019 An open quantum system is now attracting much attention because a quantum device such as quantum computers and quantum sensors is an emerging technology. Here, we present a model of the open system that shows either time-homogeneous Markovian relaxations
Le Bin Ho +3 more
doaj +1 more source
Work, heat and entropy production along quantum trajectories
, 2018 Quantum open systems evolve according to completely positive, trace preserving maps acting on the density operator, which can equivalently be unraveled in term of so-called quantum trajectories. These stochastic sequences of pure states correspond to the
Elouard, Cyril, Mohammady, Hamed
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Bottomonium suppression in an open quantum system using the quantum trajectories method
Journal of High Energy Physics, 2021 We solve the Lindblad equation describing the Brownian motion of a Coulombic heavy quark-antiquark pair in a strongly coupled quark-gluon plasma using the highly efficient Monte Carlo wave-function method.
Nora Brambilla +5 more
doaj +1 more source
The reference system and not completely positive open quantum dynamics
, 2018 Open quantum dynamics in a tripartite scenario including a system, its environment and a passive reference is shown to resolve several open questions regarding not completely positive (NCP) dynamical maps as valid descriptions of open quantum evolution ...
Joseph, Linta, Shaji, Anil
core +1 more source
Completely mixing quantum open systems and quantum fractals [PDF]
Physica D: Nonlinear Phenomena, 2001 Latex format, 20 pages, 6 figures in jpg format. New replacement has two more references (including one to a paper by G. Casati et al on quantum fractal eigenstates), adds example and comments concerning mixing properties of of a two-level atom driven by a laser field, and also adds a number of other remarks which should make it easier to follow ...
Blanchard, Philippe +2 more
openaire +5 more sources
Stabilizer codes for open quantum systems
Scientific Reports, 2023 Abstract The Lindblad master equation describes the evolution of a large variety of open quantum systems. An important property of some open quantum systems is the existence of decoherence-free subspaces. A quantum state from a decoherence-free subspace will evolve unitarily.
Pereira, FRF, Mancini, S, La Guardia, GG
openaire +5 more sources
Capturing non-Markovian dynamics on near-term quantum computers
Physical Review Research, 2021 With the rapid progress in quantum hardware, there has been an increased interest in new quantum algorithms to describe complex many-body systems searching for the still-elusive goal of “useful quantum advantage.” Surprisingly, quantum algorithms for the
Kade Head-Marsden +3 more
doaj +1 more source
Quantum localization in open chaotic systems [PDF]
Physical Review E, 2008 We study a quasi-Floquet state of a $ $-kicked rotor with absorbing boundaries focusing on the nature of the dynamical localization in open quantum systems. The localization lengths $ $ of lossy quasi-Floquet states located near the absorbing boundaries decrease as they approach the boundary while the corresponding decay rates $ $ are dramatically ...
Ryu, Jung-Wan, Hur, G., Kim, Sang Wook
openaire +3 more sources