Results 31 to 40 of about 718,181 (329)

Quantum dynamics in open quantum-classical systems [PDF]

open access: yesJournal of Physics: Condensed Matter, 2015
Often quantum systems are not isolated and interactions with their environments must be taken into account. In such open quantum systems these environmental interactions can lead to decoherence and dissipation, which have a marked influence on the properties of the quantum system.
openaire   +3 more sources

Disentanglement Dynamics in Nonequilibrium Environments

open access: yesEntropy, 2022
We theoretically study the non-Markovian disentanglement dynamics of a two-qubit system coupled to nonequilibrium environments with nonstationary and non-Markovian random telegraph noise statistical properties. The reduced density matrix of the two-qubit
Mingli Chen   +3 more
doaj   +1 more source

Efficient simulation of finite-temperature open quantum systems [PDF]

open access: yes, 2019
Chain-mapping techniques in combination with the time-dependent density matrix renormalization group are a powerful tool for the simulation of open-system quantum dynamics.
Huelga, Susana F.   +4 more
core   +2 more sources

Non-Markovian Dynamics in Ultracold Rydberg Aggregates [PDF]

open access: yes, 2016
We propose a setup of an open quantum system in which the environment can be tuned such that either Markovian or non-Markovian system dynamics can be achieved.
Eisfeld, A.   +3 more
core   +3 more sources

Digital Quantum Simulation of the Spin-Boson Model under Markovian Open-System Dynamics

open access: yesEntropy, 2022
Digital quantum computers have the potential to simulate complex quantum systems. The spin-boson model is one of such systems, used in disparate physical domains.
Andreas Burger   +2 more
doaj   +1 more source

Bottomonium observables in an open quantum system using the quantum trajectories method [PDF]

open access: yesEPJ Web of Conferences, 2022
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 Monte Carlo wave function method. The Lindblad equation has been derived in the framework of pNRQCD
Vander Griend Peter
doaj   +1 more source

Separability and distillability in composite quantum systems -a primer- [PDF]

open access: yes, 2000
Quantum mechanics is already 100 years old, but remains alive and full of challenging open problems. On one hand, the problems encountered at the frontiers of modern theoretical physics like Quantum Gravity, String Theories, etc.
A. Sanpera   +17 more
core   +2 more sources

Probing non-Markovian quantum dynamics with data-driven analysis: Beyond “black-box” machine-learning models

open access: yesPhysical Review Research, 2022
A precise understanding of the influence of a quantum system's environment on its dynamics, which is at the heart of the theory of open quantum systems, is crucial for further progress in the development of controllable large-scale quantum systems ...
I. A. Luchnikov   +5 more
doaj   +1 more source

Open quantum systems for quarkonia [PDF]

open access: yesInternational Journal of Modern Physics A, 2021
I review recent applications of the open quantum system framework in the understanding of quarkonium suppression in heavy-ion collisions, which has been used as a probe of the quark–gluon plasma for decades. The derivation of the Lindblad equations for quarkonium in both the quantum Brownian motion and the quantum optical limits and their ...
openaire   +2 more sources

Open Quantum Systems’ Decay across Time [PDF]

open access: yesPhysical Review Letters, 2021
The description of an open quantum system's decay almost always requires several approximations as to remain tractable. Here, we first revisit the meaning, domain and seeming contradictions of a few of the most widely used of such approximations: semi-group Markovianity, linear response theory, Wigner--Weisskopf and rotating-wave approximation ...
Juliane Klatt   +2 more
openaire   +4 more sources

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