搜索结果: 1-15 共查到“物理学 Adiabatic”相关记录56条 . 查询时间(0.093 秒)
Robust optimization of adiabatic tapers for coupling to slow-light photonic-crystal waveguides
Tapered structure coupling photonic crystal waveguides candles nano
2015/8/7
We investigate the design of taper structures for coupling to slow-light modes of various photonic-crystal waveguides while taking into account parameter uncertainties inherent in practical fabricatio...
The plasma analog of an adiabatic lapse rate (or temperature variation with height) in atmospheric physics is obtained. A new source of plasma temperature gradient in a binary ion species mixture is f...
Non-adiabatic transitions in a massless scalar field
Non-adiabatic transitions massless scalar field Mathematical Physics
2012/4/17
We consider the dynamics of a massless scalar field with time-dependent sources in the adiabatic limit. This is an example of an adiabatic problem without spectral gap. The main goal of our paper is t...
Consistency of the adiabatic theorem and perturbation theory
adiabatic theorem perturbation theory Quantum Physics
2011/10/9
Abstract: We present an analysis of the adiabatic approximation to understand when it applies, in view of the recent criticisms and studies for the validity of the adiabatic theorem. We point out that...
Microscopic and non-adiabatic Schrödinger equation derived from the Generator Coordinate Method based on 0 and 2 quasiparticle HFB states
Generator Coordinate Method Schrö dinger equation
2011/7/20
A new approach called the Schr\"odinger Collective Intrinsic Model (SCIM) has been developed to achieve a microscopic description of the coupling between collective and intrinsic excitations.
Adiabatic nonlinear waves with trapped particles: Part II. Wave dispersion
adiabatic nonlinear waves trapped particles Wave dispersion
2011/10/8
Abstract: A general nonlinear dispersion relation is derived in a nondifferential form for a quasistationary sinusoidal Langmuir wave in collisionless plasma, allowing for an arbitrary distribution of...
Adiabatic nonlinear waves with trapped particles: Part I. General formalism
adiabatic nonlinear waves General formalism trapped particles Plasma Physics
2011/10/8
Abstract: A Lagrangian formalism is developed for a general nondissipative quasiperiodic nonlinear wave with trapped particles in collisionless plasma. The adiabatic time-averaged Lagrangian density L...
Adiabatic Theorem for Discrete Time Evolution
adiabatic theorem quantum map quantum circuit Quantum Physics
2011/10/8
Abstract: A proof of the adiabatic theorem for quantum systems whose time evolution proceeds along discrete time, e.g., quantum maps and quantum circuits, is shown.
Adiabatic nonlinear waves with trapped particles: Part I. General formalism
Adiabatic nonlinear waves trapped particles General formalism
2011/8/4
Abstract: A Lagrangian formalism is developed for a general nondissipative quasiperiodic nonlinear wave with trapped particles in collisionless plasma. The adiabatic time-averaged Lagrangian density L...
Adiabatic nonlinear waves with trapped particles: Part II. Wave dispersion
Adiabatic nonlinear waves trapped particles Wave dispersion
2011/8/4
Abstract: A general nonlinear dispersion relation is derived in a nondifferential form for a quasistationary sinusoidal Langmuir wave in collisionless plasma, allowing for an arbitrary distribution of...
Adiabatic nonlinear waves with trapped particles: Part III. Wave dynamics
Adiabatic nonlinear waves trapped particles Wave dynamics
2011/8/4
Abstract: The evolution of waves with trapped particles is described within the Lagrangian model developed in Paper I. One-dimensional nonlinear Langmuir waves with deeply trapped electrons are addres...
Storage and Adiabatic Cooling of Polar Molecules in a Microstructured Trap
adiabatic cooling cold molecules electrostatic trapping
2011/8/17
Abstract: We demonstrate loading, trapping and adiabatic cooling of polar molecules in a new type of electric trap. The trap consists of two microstructured capacitor plates with an additional perimet...
Adiabatic theorems for generators of contracting evolutions
Adiabatic theorem contracting evolutions Banach spaces
2011/7/26
Abstract: We develop an adiabatic theory for generators of contracting evolution on Banach spaces. This provides a uniform framework for a host of adiabatic theorems ranging from unitary quantum evolu...
Non-adiabatic transitions in a non-symmetric optical lattice
Non-adiabatic transitions non-symmetric optical lattice
2011/7/27
Abstract: We study Landau-Zener interband transitions for a non-symmetric optical lattice in the presence of an external force. We show that gain and losses of the light beam, as well as the relative ...
An One Dimensional Adiabatic Model for Fusion Involving Loosely Bound and Halo Nuclei with Heavy Targets
One Dimensional Adiabatic Model Fusion Involving Loosely Bound Halo Nuclei Heavy Targets
2011/1/7
An one dimensional adiabatic model has been proposed for fusion of loosely bound and halo light
nuclei with various heavy targets. It is shown that fusion cross sections at near and sub-barrier energ...