Results 61 to 70 of about 24,094,261 (287)

Open quantum systems and Schwinger-Keldysh holograms

open access: yesJournal of High Energy Physics, 2020
We initiate the study of open quantum field theories using holographic methods. Specifically, we consider a quantum field theory (the system) coupled to a holographic field theory at finite temperature (the environment).
Chandan Jana   +2 more
doaj   +1 more source

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 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

Comparison between the rotating wave and Feynman-Vernon system-reservoir couplings in the non-Markovian regime [PDF]

open access: yes, 2003
PACS. 03.65.Yz Decoherence; open systems; quantum statistical methods – 03.65.Ta Foundations of quantum mechanics; measurement theory,
S. Maniscalco   +5 more
core   +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

Quantum Maps with Memory from Generalized Lindblad Equation

open access: yesEntropy, 2021
In this paper, we proposed the exactly solvable model of non-Markovian dynamics of open quantum systems. This model describes open quantum systems with memory and periodic sequence of kicks by environment. To describe these systems, the Lindblad equation
Vasily E. Tarasov
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Time-Dependent Approaches to Open Quantum Systems

open access: yesFrontiers in Physics, 2020
Couplings of a system to other degrees of freedom (that is, environmental degrees of freedom) lead to energy dissipation when the number of environmental degrees of freedom is large enough. Here, we discuss quantal treatments for such energy dissipation.
Masaaki Tokieda, Kouichi Hagino
doaj   +1 more source

Heavy quarkonia in quark gluon plasma as open quantum systems [PDF]

open access: yes, 2013
Dutta N. Heavy quarkonia in quark gluon plasma as open quantum systems.
Dutta, Nirupam
core  

Simulating quantum Brownian motion with single trapped ions [PDF]

open access: yes, 2004
We study the open system dynamics of a harmonic oscillator coupled with an artificially engineered reservoir. We single out the reservoir and system variables governing the passage between Lindblad-type and non-Lindblad-type dynamics of the reduced ...
Piilo, Jyrki   +9 more
core   +1 more source

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