Results 21 to 30 of about 128,075 (342)

Dissipation without resistance: Imaging impurities at quantum Hall edges

Physical Review Research, 2020
Motivated by a recent experiment [A. Marguerite et al., Nature (London) 575, 628 (2019)NATUAS0028-083610.1038/s41586-019-1704-3] on imaging in graphene samples, we investigate theoretically the dissipation induced by resonant impurities in the quantum ...
Gu Zhang, Igor V. Gornyi, Alexander D. Mirlin   +2 more
doaj   +1 more source

Completely Positive Quantum Dissipation [PDF]

Physical Review Letters, 2000
A completely positive master equation describing quantum dissipation for a Brownian particle is derived starting from microphysical collisions, exploiting a recently introduced approach to subdynamics of a macrosystem. The obtained equation can be cast into Lindblad form with a single generator for each Cartesian direction.
openaire   +5 more sources

Quantum work statistics close to equilibrium

Physical Review Research, 2020
We study the statistics of work, dissipation, and entropy production of a quantum quasi-isothermal process, where the system remains close to thermal equilibrium along the transformation.
Matteo Scandi, Harry J. D. Miller, Janet Anders, Martí Perarnau-Llobet   +3 more
doaj   +1 more source

Velocity-dependent quantum phase slips in 1D atomic superfluids [PDF]

, 2016
Quantum phase slips are the primary excitations in one-dimensional superfluids and superconductors at low temperatures but their existence in ultracold quantum gases has not been demonstrated yet.
Abbate, Simona Scaffidi, Cataldini, Federica, D'Errico, Chiara, Gori, Lorenzo, Inguscio, Massimo, Lucioni, Eleonora, Modugno, Giovanni, Tanzi, Luca   +7 more
core   +2 more sources

Fractional Quantum Zeno Effect Emerging from Non-Hermitian Physics

Physical Review X, 2023
Exploring non-Hermitian phenomenology is an exciting frontier of modern physics. However, the demonstration of a non-Hermitian phenomenon that is quantum in nature has remained elusive.
Yue Sun, Tao Shi, Zhiyong Liu, Zhidong Zhang, Liantuan Xiao, Suotang Jia, Ying Hu   +6 more
doaj   +1 more source

Macroscopic quantum dynamics of pi-junctions with ferromagnetic insulators [PDF]

, 2006
We theoretically investigate the macroscopic quantum dynamics of a pi junction with a superconductor (S) and a multiferroic material or a ferromagnetic insulator (FI).
19317, 19318, 19319, 19320, 19321, Alexander, A. Golubov, Asano, Yasuhiro, kashiwaya, Satoshi, Kawabata, Shiro, Tanaka, Yukio   +9 more
core   +4 more sources

Dynamics of Dissipative Quantum Hall Edges [PDF]

, 2003
We examine the influence of the edge electronic density profile and of dissipation on edge magnetoplasmons in the quantum Hall regime, in a semiclassical calculation.
A. M. Chang, A. V. Shytov, C. L. Kane, C. W. J. Beenakker, D. B. Chklovskii, F. P. Milliken, G. B. Ernst, G. B. Ernst, G. Ernst, G. Vignale, I. L. Aleiner, I. L. Aleiner, J. J. Palacios, L. S. Levitov, M. D. Johnson, M. Grayson, M. Grayson, M. I. Lubin, M. Stone, N. B. Zhitenev, R. C. Ashoori, U. Zülicke, U. Zülicke, V. A. Volkov, X. G. Wen, X. G. Wen, X. G. Wen   +26 more
core   +2 more sources

DISSIPATIVE QUANTUM DISORDERED MODELS [PDF]

Recent Progress in Many-Body Theories, 2006
This article reviews recent studies of mean-field and one dimensional quantum disordered spin systems coupled to different types of dissipative environments. The main issues discussed are: (i) The real-time dynamics in the glassy phase and how they compare to the behaviour of the same models in their classical limit.
openaire   +3 more sources

Engineering tunable local loss in a synthetic lattice of momentum states

New Journal of Physics, 2019
Dissipation can serve as a powerful resource for controlling the behavior of open quantum systems. Recently there has been a surge of interest in the influence of dissipative coupling on large quantum systems and, more specifically, how these processes ...
Samantha Lapp, Jackson Ang’ong’a, Fangzhao Alex An, Bryce Gadway   +3 more
doaj   +1 more source

Nonequilibrium steady states in the Floquet-Lindblad systems: van Vleck's high-frequency expansion approach

SciPost Physics Core, 2021
Nonequilibrium steady states (NESSs) in periodically driven dissipative quantum systems are vital in Floquet engineering. We develop a general theory for high-frequency drives with Lindblad-type dissipation to characterize and analyze NESSs.
Tatsuhiko N. Ikeda, Koki Chinzei, Masahiro Sato
doaj   +1 more source