Results 61 to 70 of about 644,667 (272)

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

Deformation Quantization of a Certain Type of Open Systems

open access: yes, 2009
We give an approach to open quantum systems based on formal deformation quantization. It is shown that classical open systems of a certain type can be systematically quantized into quantum open systems preserving the complete positivity of the open time ...
B.V. Fedosov   +25 more
core   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Digital quantum simulation framework for energy transport in an open quantum system

open access: yesNew Journal of Physics, 2020
Quantum effects such as the environment assisted quantum transport (ENAQT) displayed in photosynthetic Fenna–Mathews–Olson (FMO) complex has been simulated on analog quantum simulators.
Pragati Gupta, C M Chandrashekar
doaj   +1 more source

Quantum response of dephasing open systems [PDF]

open access: yes, 2011
We develop a theory of adiabatic response for open systems governed by Lindblad evolutions. The theory determines the dependence of the response coefficients on the dephasing rates and allows for residual dissipation even when the ground state is ...
Aniello P Kossakowski A Marmo G Ventriglia F   +11 more
core   +1 more source

Multifractality of open quantum systems [PDF]

open access: yesPhysical Review E, 2019
16 pages, 12 figures; closest to published ...
Bilen, Agustín M.   +3 more
openaire   +5 more sources

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

open access: yesFEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill   +4 more
wiley   +1 more source

Efficient flow equations for dissipative systems

open access: yesSciPost Physics, 2022
Open quantum systems provide an essential theoretical basis for the development of novel quantum technologies, since any real quantum system inevitably interacts with its environment. Lindblad master equations capture the effect of Markovian environments.
Gary Schmiedinghoff, Götz S. Uhrig
doaj   +1 more source

Random Control over Quantum Open Systems [PDF]

open access: yes, 2014
Parametric fluctuations or stochastic signals are introduced into the control pulse sequence to investigate the feasibility of random control over quantum open systems.
Bishop, C. Allen, Jing, Jun, Wu, Lian-Ao
core   +4 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

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