Results 1 to 10 of about 615,680 (330)

Adiabatic Processes in Quantum Optics [PDF]

open access: goldActa Physica Polonica A, 2002
This paper reviews the use of adiabatic approximations in quantum optics.The general principle is explained in terms of the Landau-Zener model and the recently developed stimulated Raman adiabatic passage scheme. The features characteristic of adiabatic evolution are extracted from these examples.
Stig Stenholm
openalex   +2 more sources

Approaching the adiabatic infimum of topological pumps on thin-film lithium niobate waveguides [PDF]

open access: yesNature Communications
Topological pumps reveal topological insights of adiabatic mode evolution, in which adiabaticity plays a crucial role. However, the adiabatic infimum, i.e., the possible shortest evolution duration of an adiabatic topological pumping process, has ...
Shengjie Wu   +7 more
doaj   +2 more sources

Invariant Perturbation Theory of Adiabatic Process [PDF]

open access: yesarXiv, 2007
In this paper we present an invariant perturbation theory to adiabatic process according to the concepts of adiabatic orbits, adiabatic evolution orbit and U(1)-invariant adiabatic orbit. The probabilities of keeping the adiabatic orbit in the first-order and the second-order approximation are calculated, respectively.
Chen, Jian-Lan   +3 more
arxiv   +3 more sources

Eigenstates Transition without Undergoing an Adiabatic Process [PDF]

open access: greenPhysical Review Letters, 2019
We introduce a class of non-Hermitian Hamiltonians that offers a dynamical approach to short-cut to adiabaticity (DASA). In particular, in our proposed 2 * 2 Hamiltonians, one eigenvalue is absolutely real and the other one is complex. This specific form of the eigenvalues helps us to exponentially decay the population in an undesired eigenfunction or ...
Fatemeh Mostafavi   +2 more
openalex   +6 more sources

Adiabatic theorem for classical stochastic processes [PDF]

open access: greenJournal of Physics A: Mathematical and Theoretical
Abstract We apply adiabatic theorems developed for quantum mechanics to stochastic annealing processes described by the classical master equation with a time-dependent generator. When the instantaneous stationary state is unique and the minimum decay rate g is nonzero, the time-evolved state is basically relaxed to the instantaneous ...
Kazutaka Takahashi
openalex   +3 more sources

Generating macroscopic superposition states by ‎adiabatic transition [PDF]

open access: yesIranian Journal of Physics Research, 2023
Since the establishment of the quantum mechanics, researchers in physics have been studying superposition states and especially proposing setups for generating macroscopic objects in a quantum superposition state.
Mahdi Aslani, Mehdi Abdi
doaj   +1 more source

Analysis of the adiabatic process by using the thermodynamic property diagram of water vapor [PDF]

open access: yesE3S Web of Conferences, 2021
In the steam power plant, the working medium used for energy transformation is water vapor. The thermodynamic properties of water vapor are usually obtained by using water vapor tables and charts.
Yarong Wang, Peirong Wang
doaj   +1 more source

Quantum Simulation of the Shortcut to the Adiabatic Passage Using Nuclear Magnetic Resonance

open access: yesEntropy, 2023
Quantum adiabatic shortcut technology provides a technique to accelerate the quantum adiabatic process and has been widely used in various fields of quantum information processing.
Xin-Chang Liu, Xiang-Yu Kong
doaj   +1 more source

ADIABATIC PROCESS AND CHERN NUMBERS [PDF]

open access: yesModern Physics Letters B, 2008
We study quantum processes with two or more adiabatic parameters. When the parameters are compactified, a derivative of the Hamiltonian is closely related to a first Chern number. This topological formulation is applied to the AC Josephson effect and the spin Hall effect in semiconductors.
Mahito Kohmoto, Jun Goryo
openaire   +3 more sources

On the ambiguity of an ideal gas entropy concept

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2020
Based on a critical analysis of the existing characteristics of an ideal gas and the theory of thermodynamic potentials, the article considers its new model, which includes the presence of an ideal gas in addition to kinetic energy of potential (chemical)
V. G. Kiselev
doaj   +1 more source

Home - About - Disclaimer - Privacy