搜索结果: 46-60 共查到“理学 relaxation”相关记录91条 . 查询时间(0.042 秒)
Coulomb interaction effects and electron spin relaxation in the 1d Kondo lattice model
Ludwig-Maximilians-Universit¨at M¨unchen University of Queensland
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2010/11/23
We study the effects of the Coulomb interaction in the one dimensional Kondo lattice model on
the phase diagram, the static magnetic susceptibility and electron spin relaxation. We show that onsite C...
Transport relaxation time and length scales in turbulent suspensions
Transport relaxation time and length scales turbulent suspensions
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2010/11/18
We show that in a turbulent ow transporting suspended sediment, the unsaturated sediment ux q(x; t) can be described by a rst-order relaxation equation.
Linear theory and violent relaxation in long-range systems: a test case
Linear theory long-range systems
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2010/11/17
In this article, several aspects of the dynamics of a toy model for longrange Hamiltonian systems are tackled focusing on linearly unstable unmagnetized (i.e. force-free) cold equilibria states of the...
Late-time relaxation limits of nonlinear hyperbolic systems. A general framework
nonlinear hyperbolic systems A general framework
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2010/11/19
We investigate the late-time asymptotic behavior of solutions to nonlinear hyperbolic systems of conservation laws containing stiff source term. On one hand, we determine the relevant asymptotic expa...
Direction Dependence of Spin Relaxation in Confined 2D Systems
Direction Dependence of Spin Relaxation Direction Dependence of Spin Relaxation
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2010/11/18
The dependence of spin relaxation on the direction of the quantum wire under Rashba and Dresselhaus (linear and cubic) spin orbit coupling is studied. Comprising the dimensional reduction of the wire ...
Vibrational relaxation and decoherence of Rb_2 attached to helium nanodroplets
Vibrational relaxation decoherence of Rb_2 helium nanodroplets
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2010/11/16
The vibrational wave-packet dynamics of diatomic rubidium molecules (Rb_2) in triplet states formed on the surface of superfluid helium nanodroplets is investigated both experimentally and theoretica...
Two-spin relaxation of P-dimers in Silicon
Two-spin relaxation P-dimers in Silicon
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2010/11/11
We study two-electron singlet-triplet relaxation of donor-bound electrons in Silicon. Hyperfine interaction of the electrons with the phosphorus (P) nuclei, in combination with the electron-phonon int...
Robust Transceiver Design for K-Pairs Quasi-Static MIMO Interference Channels via Semi-Definite Relaxation
K-Pairs Quasi-Static MIMO Interference Channels Semi-Definite Relaxation
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2010/12/9
In this paper, we propose a robust transceiver design for the K-pair quasi-static MIMO interference channel. Each transmitter is equipped with M antennas, each receiver is
equipped with N antennas.
Gradient flow structure for domain relaxation in Langmuir films
Gradient flow structure domain relaxation Langmuir films
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2010/11/26
We describe a gradient flow structure for the inviscid Langmuir layer Stokesian subfluid model introduced recently by Alexander et al [1].
Input Design for System Identification via Convex Relaxation
Input Design System Identification Convex Relaxation
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2010/12/14
This paper proposes a new framework for the optimization of excitation inputs for system identification. The optimization problem considered is to maximize a reduced Fisher information matrix in any o...
Implicit-explicit Runge-Kutta schemes and applications to hyperbolic systems with relaxation
Runge-Kutta methods hyperbolic systems with relaxation stiff systems
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2010/12/6
We consider new implicit-explicit (IMEX) Runge-Kutta methods for hyperbolic systems of conservation laws with stiff relaxation terms. The explicit part is treated by a strong-stability-preserving (SSP...
Slow relaxation to equipartition in spring-chain systems
spring-chain systems kinetic energy
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2010/4/2
In this study, one-dimensional systems of masses connected by springs, i.e., spring-chain systems, are investigated numerically. The average kinetic energy of chain-end particles of these systems is l...
Ginzburg-Landau equation for dynamical four-wave mixing in gain nonlinear media with relaxation
four-wave mixing Ginzburg-Landauequation Maxwell-Bloch system in optics
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2010/4/7
We consider the dynamical degenerate four-wave mixing (FWM) model in a cubic nonlinear medium including both the time relaxation of the induced nonlinearity and the nonlocal coupling. The initial ten-...
Two-Body relaxation and the heating of disk galaxy models
Two-Body relaxation disk galaxy models
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2009/6/25
Two-Body relaxation and the heating of disk galaxy models。
The Response of Equatorial Oceans to a Relaxation of the Trade Winds
Equatorial Oceans Trade Winds
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2009/2/9
The trade winds over the central Pacific are observed to weaken several months after the appearance of anomalously warm surface waters in the eastern equatorial Pacific Ocean. The following results ob...