Results 11 to 20 of about 185,697 (284)

On the limit spectrum of a degenerate operator in the framework of periodic homogenization or singular perturbation problems

open access: yesComptes Rendus. Mathématique, 2022
In this paper we perform the analysis of the spectrum of a degenerate operator $A_\varepsilon $ corresponding to the stationary heat equation in a $\varepsilon $-periodic composite medium having two components with high contrast diffusivity.
Sili, Ali
doaj   +1 more source

Asymptotic theory of quasiperiodically driven quantum systems [PDF]

open access: yes, 2018
The theoretical treatment of quasi-periodically driven quantum systems is complicated by the inapplicability of the Floquet theorem, which requires strict periodicity.
Cubero, David, Renzoni, Ferruccio
core   +3 more sources

A multi-optional hybrid functions entropy as a tool for transportation means repair optimal periodicity determination

open access: yesAviation, 2018
The paper considers theoretical explanation and construction of some mathematical models of a transportation mean operational process in reference to maintenance optimal periodicity.
Andriy Goncharenko
doaj   +1 more source

Flux-quantum-modulated Kondo conductance in a multielectron quantum dot [PDF]

open access: yes, 2002
We investigate a lateral semiconductor quantum dot with a large number of electrons in the limit of strong coupling to the leads. A Kondo effect is observed and can be tuned in a perpendicular magnetic field.
A. D. Wieck   +32 more
core   +3 more sources

c-function and central charge of the sine-Gordon model from the non-perturbative renormalization group flow

open access: yesNuclear Physics B, 2015
In this paper we study the c-function of the sine-Gordon model taking explicitly into account the periodicity of the interaction potential. The integration of the c-function along trajectories of the non-perturbative renormalization group flow gives ...
V. Bacsó   +3 more
doaj   +1 more source

Floquet engineering of optical lattices with spatial features and periodicity below the diffraction limit

open access: yesNew Journal of Physics, 2019
Floquet engineering or coherent time-periodic driving of quantum systems has been successfully used to synthesize Hamiltonians with novel properties.
S Subhankar   +7 more
doaj   +1 more source

Noise Sensitivities for an Atom Shuttled by a Moving Optical Lattice via Shortcuts to Adiabaticity

open access: yesEntropy, 2020
We find the noise sensitivities (i.e., the quadratic terms of the energy with respect to the perturbation of the noise) of a particle shuttled by an optical lattice that moves according to a shortcut-to-adiabaticity transport protocol.
Xiao-Jing Lu   +3 more
doaj   +1 more source

Improvement of the method for comparing subsidence of structures using the Fischer’s F-test and the Foster-Stuart test [PDF]

open access: yesE3S Web of Conferences, 2021
To improve the quality of construction and increase the durability of engineering structures under construction, complex geodetic works should be performed, including geodetic observations of deformations of structures. These observations are carried out
Suyunov Abdusali   +3 more
doaj   +1 more source

Effects of Limited Computational Precision on the Discrete Chaotic Sequences and the Design of Related Solutions

open access: yesComplexity, 2019
In this paper, we analyzed the periodicity of discrete Logistic and Tent sequences with different computational precision in detail. Further, we found that the process of iterations of the Logistic and Tent mapping is composed of transient and periodic ...
Chunlei Fan, Qun Ding
doaj   +1 more source

Beam dynamics analysis of dielectric laser acceleration using a fast 6D tracking scheme

open access: yesPhysical Review Accelerators and Beams, 2017
A six-dimensional symplectic tracking approach exploiting the periodicity properties of dielectric laser acceleration (DLA) gratings is presented.
Uwe Niedermayer   +2 more
doaj   +1 more source

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