Results 41 to 50 of about 133,730 (253)

Hamiltonian assignment for open quantum systems

open access: yesPhysical Review Research, 2020
We investigate the problem of determining the Hamiltonian of a locally interacting open quantum system. To do so, we construct Hamiltonian estimators based on inverting a set of stationary, or dynamical, Heisenberg-Langevin equations of motion which rely
Eugene F. Dumitrescu, Pavel Lougovski
doaj   +1 more source

Modulating thermal robustness and entanglement distribution in a two-dimensional dissipative spin system using impurities

open access: yesResults in Physics, 2022
We consider a finite two-dimensional Heisenberg triangular spin lattice coupled to a dissipative Markovian environment at finite temperature in the presence of an external uniform magnetic field.
Gehad Sadiek, Maryam AlQasimi
doaj   +1 more source

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   +1 more source

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   +1 more source

Thermalization in open quantum systems

open access: yesPhysical Review B, 2018
11 pages, 10 ...
Reichental, Israel   +3 more
openaire   +3 more sources

UNCERTAINTY RELATION FOR A QUANTUM OPEN SYSTEM [PDF]

open access: yesInternational Journal of Modern Physics A, 1995
We derive the uncertainty relation for a quantum open system consisting of a Brownian particle interacting with a bath of quantum oscillators at finite temperature. We examine how the quantum and thermal fluctuations of the environment contribute to the uncertainty in the canonical variables of the system.
Hu, B. L., Zhang, Yuhong
openaire   +2 more sources

Hamiltonian open quantum system toolkit

open access: yesCommunications Physics, 2022
In quantum computing, simulating continuously evolving open quantum systems is key to describe dynamical processes on noisy quantum devices. Here, the authors present an open-source software package “Hamiltonian Open Quantum System Toolkit” (HOQST) for ...
Huo Chen, Daniel A. Lidar
doaj   +1 more source

Quantum Non-Markovian Environment-to-System Backflows of Information: Nonoperational vs. Operational Approaches

open access: yesEntropy, 2022
Quantum memory effects can be qualitatively understood as a consequence of an environment-to-system backflow of information. Here, we analyze and compare how this concept is interpreted and implemented in different approaches to quantum non-Markovianity.
Adrián A. Budini
doaj   +1 more source

Quantum Darwinism in a Composite System: Objectivity versus Classicality

open access: yesEntropy, 2021
We investigate the implications of quantum Darwinism in a composite quantum system with interacting constituents exhibiting a decoherence-free subspace. We consider a two-qubit system coupled to an N-qubit environment via a dephasing interaction.
Barış Çakmak   +4 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

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