搜索结果: 1-15 共查到“量子力学 dynamics”相关记录92条 . 查询时间(0.073 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Improved error estimates of the splitting methods for the long-time dynamics for the weakly nonlinear Schrodinger equations
弱非线性薛定谔方程 长时间动力学 分裂方法 误差估计
2023/4/21
We establish improved uniform error bounds for the time-splitting methods for the long-time dynamics of the nonlinear Schr\"odinger equation (NLSE) with weak nonlinearity. By a new technique of regula...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Dynamics of multi-solitons to Klein-Gordon equations
多孤子 克莱因-戈登方程 动力学
2023/4/21
I will report my recent joint work with Jacek Jendrej on muti-solitons to the Klein-Gordon equations including their asymptotic stability and classification.
Geometric symmetries in superfluid vortex dynamics
Quantization vortex line fluid dynamics fluid flow vortex dynamics
2014/12/18
Dynamics of quantized vortex lines in a superfluid feature symmetries associated with the geometric character of the complex-valued field, w(z)=x(z)+iy(z), describing the instant shape of the line. Al...
Dynamics of hydrogen-like atom bounded by maximal acceleration
Maximal acceleration Extended Relativistic Dynamics Hydrogen-like atom probabilistic description center of mass
2012/4/20
The existence of a maximal acceleration for massive objects was conjectured by Caianiello 30 years ago based on the Heisenberg uncertainty relations. Many consequences of this hypothesis have been stu...
Buckled nano rod - a two state system: quantum effects on its dynamics
Buckled nano rod two state system quantum effects dynamics
2011/8/4
Abstract: We consider a suspended elastic rod under longitudinal compression. The compression can be used to adjust potential energy for transverse displacements from harmonic to double well regime. T...
Fluid dynamics and noise in bacterial cell-cell and cell-surface scattering
Fluid dynamics noise bacterial cell-cell cell-surface scattering
2011/8/4
Abstract: Bacterial processes ranging from gene expression to motility and biofilm formation are constantly challenged by internal and external noise. While the importance of stochastic fluctuations h...
Macroscopic time evolution and MaxEnt inference for closed systems with Hamiltonian dynamics
MaxEnt algorithm information theory statistical mechanics Hamiltonian dynamics
2010/11/24
MaxEnt inference algorithm from the information theory is relevant for the time evolution of macroscopic systems which represents a problem of incomplete information. Two different approaches using Ma...
General Non-equilibrium Theory of Colloid Dynamics
General Non-equilibrium Theory Colloid Dynamics
2010/11/24
A non-equilibrium extension of Onsager’s canonical theory of thermal fluctuations is employed
to derive a self-consistent theory for the description of the statistical properties of the instantaneous...
We present numerical simulations of a Kerr black hole perturbed by a pulse of ingoing gravitational radiation. For strong perturbations we find up to five concentric marginally outer trapped surfaces....
The dynamics of dark solitons in a trapped superfluid Fermi gas
dynamics of dark solitons trapped superfluid Fermi gas
2010/11/24
We study soliton oscillations in a trapped superfluid Fermi gas across the Bose-Einstein conden-sate to Bardeen-Cooper-Schrieffer (BEC-BCS) crossover. We derive an exact equation relating the phase ju...
Dynamics of a Bose-Einstein condensate in a symmetric triple-well trap
Dynamics a symmetric triple-well trap a Bose-Einstein condensate
2010/11/8
We present a complete analysis of the dynamics of a Bose-Einstein condensate trapped in a symmetric triple-well potential. Our classical analogue treatment, based on a time-dependent variational metho...
Open system quantum dynamics with correlated initial states, not completely positive maps and non-Markovianity
quantum dynamics non-Markovianity Quantum Physics
2010/11/8
Dynamical A and B maps have been employed extensively by Sudarshan and co-workers to investigate open system evolution of quantum systems. A canonical structure of the A-map is introduced here. It is ...
Laser phase noise effects on the dynamics of optomechanical resonators
optomechanical resonators laser phase noise Quantum Physics
2010/11/8
We investigate theoretically the influence of laser phase noise on the cooling and heating of a generic cavity optomechanical system. We derive the back-action damping and heating rates and the mechan...
Entanglement dynamics of bipartite system in squeezed vacuum reservoirs
squeezed vacuum reservoirs bipartite system Quantum Physics
2010/11/8
Entanglement plays a crucial role in quantum information protocols, thus the dynamical behavior of entangled states is of a great importance. In this paper we suggest a useful scheme that permits a di...
Entanglement dynamics of two-bipartite system under the influence of dissipative environments
dissipative environments Quantum Physics
2010/11/8
An experimental scheme is suggested that permits a direct measure of entanglement in a two-qubit cavity system. It is realized in the cavity-QED technology utilizing atoms as flying qubits. With this ...