Results 21 to 30 of about 1,673,449 (337)

Distinguishing between Quantum and Classical Markovian Dephasing Dissipation. [PDF]

open access: yesPhysical Review Letters, 2021
Understanding whether dissipation in an open quantum system is truly quantum is a question of both fundamental and practical interest. We consider n qubits subject to correlated Markovian dephasing and present a sufficient condition for when bath-induced
Alireza Seif, Yu-Xin Wang, A. Clerk
semanticscholar   +1 more source

Hydrodynamics of quantum entropies in Ising chains with linear dissipation [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2021
We study the dynamics of quantum information and of quantum correlations after a quantum quench, in transverse field Ising chains subject to generic linear dissipation.
V. Alba, F. Carollo
semanticscholar   +1 more source

Correlation engineering via nonlocal dissipation

open access: yesPhysical Review Research, 2022
Controlling the spread of correlations in quantum many-body systems is a key challenge at the heart of quantum science and technology. Correlations are usually destroyed by dissipation arising from coupling between a system and its environment.
K. Seetharam   +3 more
doaj   +1 more source

Scattering in Terms of Bohmian Conditional Wave Functions for Scenarios with Non-Commuting Energy and Momentum Operators

open access: yesEntropy, 2021
Without access to the full quantum state, modeling quantum transport in mesoscopic systems requires dealing with a limited number of degrees of freedom.
Matteo Villani   +4 more
doaj   +1 more source

Atom-Field Interaction: From Vacuum Fluctuations to Quantum Radiation and Quantum Dissipation or Radiation Reaction [PDF]

open access: yesPhysics, 2019
In this paper, we dwell on three issues: (1) revisit the relation between vacuum fluctuations and radiation reaction in atom-field interactions, an old issue that began in the 1970s and settled in the 1990s with its resolution recorded in monographs; (2)
Jen-Tsung Hsiang, B. Hu
semanticscholar   +1 more source

Quantum dissipation of a heavy quark from a nonlinear stochastic Schrödinger equation [PDF]

open access: yesJournal of High Energy Physics, 2018
A bstractWe study the open system dynamics of a heavy quark in the quark-gluon plasma using a Lindblad master equation. Applying the quantum state diffusion approach by Gisin and Percival, we derive and numerically solve a nonlinear stochastic ...
Y. Akamatsu   +3 more
semanticscholar   +1 more source

Dissipative Majorana Quantum Wires

open access: yesiScience, 2019
Summary: In this paper, we formulate and quantitatively examine the effect of dissipation on topological systems. We use a specific model of Kitaev quantum wire with an onsite Ohmic dissipation and perform a numerically exact method to investigate the ...
Yizhen Huang, Alejandro M. Lobos, Zi Cai
doaj   +1 more source

Out of time ordered quantum dissipation [PDF]

open access: yesJournal of High Energy Physics, 2018
We consider a quantum Brownian particle interacting with two harmonic baths, which is then perturbed by a cubic coupling linking the particle and the baths.
Bidisha Chakrabarty   +2 more
semanticscholar   +1 more source

Exponential time-scaling of estimation precision by reaching a quantum critical point

open access: yesPhysical Review Research, 2022
Quantum metrology refers to the use of quantum resources in parameter-estimation protocols, aiming at enhancing its precision. The quantum Fisher information is a key quantity in this context, setting the ultimate achievable precision with respect to ...
Louis Garbe   +3 more
doaj   +1 more source

Stochastic Representation of Non-Markovian Fermionic Quantum Dissipation. [PDF]

open access: yesPhysical Review Letters, 2018
Quantum Brownian motion plays a fundamental role in many areas of modern physics. In the path-integral formulation, environmental fluctuations can be characterized by auxiliary stochastic fields.
L. Han   +4 more
semanticscholar   +1 more source

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