搜索结果: 1-15 共查到“理学 Quantum dynamics”相关记录20条 . 查询时间(0.394 秒)
A Bloch decomposition based split-step pseudo spectral method for quantum dynamics with periodic potentials
Schrodinger equation Bloch decomposition time-splitting spectral method semiclassical asymptotics lattice potential
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2012/5/24
We present a new numerical method for accurate computations of solutions to (linear) one dimensional Schr\"odinger equations with periodic potentials. This is a prominent model in solid state physics ...
Detailed study of dissipative quantum dynamics of K-2 attached to helium nanodroplets
K-2 helium nanodroplets
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2011/9/9
We thoroughly investigate vibrational quantum dynamics of dimers attached to He droplets motivated by recent measurements with K2 [1]. For those femtosecond pump-probe experiments, crucial observed fe...
Non-equilibrium Quantum Dynamics of Thermally Activated Transitions
Non-equilibrium Quantum Dynamics Thermally Activated Transitions
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2011/1/6
We study the role of quantum fluctuations of atomic nuclei in thermally activated, out-of-equilibrium processes. To this goal we introduce an extension of the Dominant Reaction Pathways (DRP) formalis...
Effective evolution equations from many body quantum dynamics
Effective evolution equations many body quantum dynamics
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2011/2/24
In these notes we review some recent results concerning the derivation of effective
equations from first principle quantum dynamics. In particular, we discuss the derivation
of the semi-relativistic...
Open system quantum dynamics with correlated initial states, not completely positive maps and non-Markovianity
quantum dynamics non-Markovianity Quantum Physics
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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 ...
Bianchi I model in terms of nonstandard loop quantum cosmology: Quantum dynamics
Bianchi I model terms nonstandard loop quantum cosmology Quantum dynamics
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2010/11/9
We analyze the quantum Bianchi I model in the setting of the nonstandard loop quantum cosmology. Elementary observables are used to quantize the volume operator. The spectrum of the volume operator i...
Quantum Dynamics Arising from Statistical Axioms
Quantum Dynamics Arising Statistical Axioms
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2010/10/20
We investigate the dynamics of pairs of Fermions and Bosons released from a box and find that their populations have unique generic properties ensuing from the axioms of quantum statistics and symmetr...
Non-relativistic Gravity in Entropic Quantum Dynamics
Non-relativistic Gravity Entropic Quantum Dynamics
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2010/10/29
Symmetries and transformations are explored in the framework of entropic quantum dynamics. Two conditions arise that are required for any transformation to qualify as a symmetry. The heart of this wor...
Stochastic quantum dynamics in 1D and lattice systems
Stochastic quantum dynamics 1D lattice systems
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2010/10/21
We show that stochastic phase-space methods within the truncated Wigner approximation can be used to solve non-equilibrium dynamics of bosonic atoms in 1d traps. We consider systems both with and with...
Quantum Dynamics of Radical-Ion-Pair Reactions
Quantum Dynamics Radical-Ion-Pair Reactions
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2010/10/20
Radical-ion-pair reactions were recently shown to represent a rich biophysical laboratory for the application of quantum measurement theory methods and concepts, casting doubt on the validity of the t...
Quantum Dynamics of Nonlinear Cavity Systems
Quantum Dynamics Nonlinear Cavity Systems
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2010/10/20
In this work we investigate the quantum dynamics of three dierent congurations of nonlinear cavity systems. We begin by carrying out a quantum analysis of a dc superconducting quantum interference d...
Quantum dynamics of instability-induced pulsations of a Bose-Einstein condensate in an optical lattice
Quantum dynamics instability-induced pulsations Bose-Einstein condensate optical lattice
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2010/4/13
We study the dynamics of a Bose-Einstein condensate in a one-dimensional optical lattice in the limit of weak atom-atom interactions, including an approximate model for quantum fluctuations. A pulsati...
Comparison Between the Full Quantum Dynamics and the Quantum-Semiclassical Models to Many-Particle Systems
quantum-semiclassical model
squeezed state quantum dynamics method
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2007/8/15
2001Vol.35No.4pp.509-512DOI:
Comparison Between the Full Quantum Dynamics and the Quantum-Semiclassical Models to Many-Particle Systems
GAO Xian-Long,1 WANG Ke-Lin,1,2 XU Fei2 an...
Quantum Dynamics of Cooled Atoms
in the Presence of Bose-Einstein Condensates
Bose-Einstein condensation
master equation
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2007/8/15
2001Vol.35No.3pp.319-322DOI:
Quantum Dynamics of Cooled Atoms
in the Presence of Bose-Einstein Condensates
YI Xue-Xi1,3 and SU Jun-Chen2
1 Institute of Theoretical Phys...
Exact Solution of Quantum Dynamics of a Cantilever Coupling to aSingle Trapped Ultracold Ion
ultracold ion cantilever squeezed-state
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2007/8/15
2007Vol.47No.3pp.561-566DOI:
Exact Solution of Quantum Dynamics of a Cantilever Coupling to aSingle Trapped Ultracold Ion
LIU Tao,1 FENG Mang,1,2 and WANG Ke-Lin1,3
1 Th...