Results 71 to 80 of about 615,680 (330)

A decoherence interpretation of quantum work for adiabatic processes [PDF]

open access: yesPhys. Rev. E 97, 012128 (2018), 2017
In this paper, decoherence is studied for quantum systems undergoing adiabatic processes, which are coupled to huge quantum environments. It is shown that decoherence can happen with respect to a preferred basis given by transient self-Hamiltonian.This result can be used to justify a most-often-used definition of quantum work for a system undergoing an
arxiv   +1 more source

Adiabatic Theorems and Reversible Isothermal Processes [PDF]

open access: yesLetters in Mathematical Physics, 2005
Isothermal processes of a finitely extended, driven quantum system in contact with an infinite heat bath are studied from the point of view of quantum statistical mechanics. Notions like heat flux, work and entropy are defined for trajectories of states close to, but distinct from states of joint thermal equilibrium. A theorem characterizing reversible
Abou-Salem, Walid, Fröhlich, Jürg
openaire   +6 more sources

Isoholonomic Problem and Holonomic Quantum Computation

open access: yes, 2005
Geometric phases accompanying adiabatic processes in quantum systems can be utilized as unitary gates for quantum computation. Optimization of control of the adiabatic process naturally leads to the isoholonomic problem.
Tanimura, Shogo
core   +3 more sources

Chemical AI in the Limelight: The Contribution of Photochromic Materials and Oscillatory Chemical Reactions

open access: yesAdvanced Optical Materials, EarlyView.
Photochromic compounds are versatile ingredients for the development of Chemical AI. When they are embedded in a tight microenvironment, they become Markov blankets. They are also valuable for processing Boolean and Fuzzy logic. They contribute to neuromorphic engineering in wetware based on opto‐chemical signals exchanged with oscillatory chemical ...
Pier Luigi Gentili
wiley   +1 more source

NUMERICAL ANALYSIS OF GAS-DROPLET CHEMICAL PLUG-FLOW REACTOR OPERATING MODES

open access: yesВестник Донского государственного технического университета, 2018
A one-dimensional model and numerical solution of the non-stationary modes of the adiabatic gas-droplet chemical plug-flow reactor are considered. The developed approach permits to investigate processes of heat and mass transfer in the laminar flow of ...
Valeria V. Pritchina   +2 more
doaj  

Shortcuts to quantum adiabatic processes

open access: yesJournal of Physics: Conference Series, 2011
We review different ways to accelerate adiabatic processes in cold atom physics and atomic state preparation. Trap expansions or contractions and atomic transport may be accelerated by an invariant-based inverse engineering approach. Berry's inverse engineering method is also applied to produce fast versions of adiabatic passage methods.
Xi Chen   +6 more
openaire   +2 more sources

The Impact of Donor‐Orientation on the Emission Properties of Chlorinated Trityl Radicals

open access: yesAdvanced Optical Materials, EarlyView.
Chlorinated trityl radicals with electron‐donating groups enable efficient red emission for optoelectronics. Donor orientation and steric constraints regulate vibronic coupling, influencing luminescence. A novel trityl derivative with restricted donor alignment minimizes non‐radiative decay, enhancing quantum yield.
Mona E. Arnold   +9 more
wiley   +1 more source

Investigation on the changes of pressure and temperature in high pressure filling of hydrogen storage tank

open access: yesCase Studies in Thermal Engineering, 2022
Hydrogen as fuel has been considered as a feasible energy carry and which offers a clean and efficient alternative for transportation. During the high pressure filling, the temperature in the hydrogen storage tank (HST) may rise rapidly due to the ...
Ji-Qiang Li   +3 more
doaj  

Adiabatic Processes for Charged AdS Black Hole in the Extended Phase Space [PDF]

open access: yesarXiv, 2017
In the extended phase space, a general method is used to derive all the possible adiabatic processes for charged AdS black hole. Two kinds are found, one is zero temperature adiabatic process which is irreversible, the other is isochore adiabatic process which is reversible.
arxiv  

Dynamic release of trapped light from an ultrahigh-Q nanocavity via adiabatic frequency tuning

open access: yes, 2008
Adiabatic frequency shifting is demonstrated by tuning an ultrahigh-Q photonic crystal nanocavity dynamically. By resolving the output temporally and spectrally, we showed that the frequency of the light in the cavity follows the cavity resonance shift ...
Kuramochi, Eiichi   +3 more
core   +1 more source

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