Results 21 to 30 of about 441,267 (345)

Operator growth and Krylov construction in dissipative open quantum systems [PDF]

open access: yesJournal of High Energy Physics, 2022
Inspired by the universal operator growth hypothesis, we extend the formalism of Krylov construction in dissipative open quantum systems connected to a Markovian bath.
Aranya Bhattacharya   +3 more
semanticscholar   +1 more source

Quantum Ratchets in Dissipative Chaotic Systems [PDF]

open access: yesPhysical Review Letters, 2005
Using the method of quantum trajectories we study a quantum chaotic dissipative ratchet appearing for particles in a pulsed asymmetric potential in the presence of a dissipative environment. The system is characterized by directed transport emerging from a quantum strange attractor.
CARLO GG   +3 more
openaire   +5 more sources

Path-integral description of combined Hamiltonian and non-Hamiltonian dynamics in quantum dissipative systems [PDF]

open access: yes, 2016
We present a numerical path-integral iteration scheme for the low-dimensional reduced density matrix of a time-dependent quantum dissipative system. Our approach simultaneously accounts for the combined action of a microscopically modeled pure-dephasing ...
A. Barth, A. Vagov, V. M. Axt
semanticscholar   +1 more source

Dissipative quantum many-body dynamics in (1+1)D quantum cellular automata and quantum neural networks [PDF]

open access: yes, 2023
Classical artificial neural networks, built from elementary units, possess enormous expressive power. Here we investigate a quantum neural network architecture, which follows a similar paradigm.
Carollo, Federico   +5 more
core   +2 more sources

Weak invariants of time-dependent quantum dissipative systems [PDF]

open access: yes, 2016
The concept of weak invariant is introduced. Then, the weak invariants associated with time-dependent quantum dissipative systems are discussed in the context of master equations of the Lindblad type.
S. Abe
semanticscholar   +1 more source

Effect of bath temperature on the decoherence of quantum dissipative systems [PDF]

open access: yes, 2016
We report an anomalous decoherence phenomenon of a quantum dissipative system in the framework of a stochastic decoupling scheme along with a hierarchical equations-of-motion formalism without the usual Born-Markov or weak coupling approximations.
Wéi Wú, Hai-Qing Lin
semanticscholar   +1 more source

Operator growth in open quantum systems: lessons from the dissipative SYK [PDF]

open access: yesJournal of High Energy Physics, 2022
We study the operator growth in open quantum systems with dephasing dissipation terms, extending the Krylov complexity formalism of [ 1 ]. Our results are based on the study of the dissipative q -body Sachdev-Ye-Kitaev (SYK_ q ) model, governed by the ...
Budhaditya Bhattacharjee   +3 more
semanticscholar   +1 more source

QD3SET-1: A Database with Quantum Dissipative Dynamics Data Sets [PDF]

open access: yes, 2023
Simulations of the dynamics of dissipative quantum systems utilize many methods such as physics-based quantum, semiclassical, and quantum-classical as well as machine learning-based approximations, development and testing of which requires diverse data ...
Luis E. Herrera, Rodr ́iguez   +3 more
core   +1 more source

Dissipation-induced Liouville-Majorana modes in open quantum system

open access: yesPhysical Review Research, 2023
In open quantum systems, topological edge states rapidly lose coherence, making them unsuitable for topological quantum computation and quantum memory.
Xing-Shuo Xu   +3 more
doaj   +1 more source

Bayesian quantum parameter estimation with Gaussian states and homodyne measurements in a dissipative environment

open access: yesResults in Physics, 2023
The deterioration of precision caused by quantum decoherence in dissipative environments is a longstanding problem in the development of quantum metrology.
Jie Tang   +7 more
doaj   +1 more source

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