Results 11 to 20 of about 644,667 (272)

Digital Quantum Simulation of Open Quantum Systems Using Quantum Imaginary–Time Evolution

open access: yesPRX Quantum, 2022
Quantum simulation on emerging quantum hardware is a topic of intense interest. While many studies focus on computing ground-state properties or simulating unitary dynamics of closed systems, open quantum systems are an interesting target of study owing ...
Hirsh Kamakari   +3 more
doaj   +2 more sources

Quantum trajectories and open many-body quantum systems [PDF]

open access: yesAdvances in Physics, 2014
The study of open quantum systems has become increasingly important in the past years, as the ability to control quantum coherence on a single particle level has been developed in a wide variety of physical systems.
Daley, Andrew J.
core   +4 more sources

Nonlinear dynamics of open quantum systems

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018
The evolution of a composite closed system using the integral wave equation with the kernel in the form of path integral is considered. It is supposed that a quantum particle is a subsystem of this system.
Alexey Yu Samarin
doaj   +3 more sources

Thermodynamic length in open quantum systems [PDF]

open access: yesQuantum, 2019
The dissipation generated during a quasistatic thermodynamic process can be characterised by introducing a metric on the space of Gibbs states, in such a way that minimally-dissipating protocols correspond to geodesic trajectories.
Matteo Scandi, Martí Perarnau-Llobet
doaj   +5 more sources

Many-body open quantum systems

open access: yesSciPost Physics Lecture Notes
These lecture notes discuss the recent theoretical advances in the understanding of open quantum many-body physics in platforms where both dissipative and coherent processes can be tuned and controlled to a high degree.
Rosario Fazio, Jonathan Keeling, Leonardo Mazza, Marco Schirò
doaj   +3 more sources

Quantum metrology with open dynamical systems

open access: yesNew Journal of Physics, 2013
This paper studies quantum limits to dynamical sensors in the presence of decoherence. A modified purification approach is used to obtain tighter quantum detection and estimation error bounds for optical phase sensing and optomechanical force sensing ...
Mankei Tsang
doaj   +2 more sources

Nonequilibrium Quantum Evolution of Open Systems [PDF]

open access: yesCondensed Matter Physics, 1999
We apply the Liouville-von Neumann (LvN) approach to open systems to describe the nonequilibrium quantum evolution. The Liouville-von Neumann approach is a unified method that can be applied to both time-independent (closed) and time-dependent (open ...
Kim, Sang Pyo
core   +5 more sources

Quantum Zeno Effect in Open Quantum Systems [PDF]

open access: yesAnnales Henri Poincaré, 2021
AbstractWe prove the quantum Zeno effect in open quantum systems whose evolution, governed by quantum dynamical semigroups, is repeatedly and frequently interrupted by the action of a quantum operation. For the case of a quantum dynamical semigroup with a bounded generator, our analysis leads to a refinement of existing results and extends them to a ...
Becker, Simon   +2 more
openaire   +2 more sources

Quantum thermo-dynamical construction for driven open quantum systems [PDF]

open access: yesQuantum, 2021
Quantum dynamics of driven open systems should be compatible with both quantum mechanic and thermodynamic principles. By formulating the thermodynamic principles in terms of a set of postulates we obtain a thermodynamically consistent master equation ...
Roie Dann, Ronnie Kosloff
doaj   +1 more source

Round table on open quantum systems [PDF]

open access: yesEPJ Web of Conferences, 2022
This is a discussion about open quantum systems and its application to the study of hard probes. It reviews some of the things that were said in the corresponding round table. Views are only my own.
Escobedo Miguel Ángel
doaj   +1 more source

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