搜索结果: 1-15 共查到“理学 Einstein condensates”相关记录85条 . 查询时间(0.076 秒)
A faster way to make Bose-Einstein condensates（图）
faster way make Bose Einstein condensates
2017/12/18
The world of an atom is one of random chaos and heat. At room temperatures, a cloud of atoms is a frenzied mess, with atoms zipping past each other and colliding, constantly changing their direction ...
The origin of the phase in the interference of Bose-Einstein condensates
The condensation condensation wave function treatment the particles
2014/12/20
We consider the interference of two overlapping ideal Bose-Einstein condensates. The usual description of this phenomenon involves the introduction of a condensate wave function with a definite phase....
Evolution of additional (hidden) quantum variables in the interference of Bose-Einstein condensates
Additional variable hidden variables quantum mechanics the high concentration condensate
2014/12/20
Additional variables (also often called “hidden variables”) are sometimes added to standard quantum mechanics in order to remove its indeterminism or “incompleteness” and to make the measurement proce...
Nonlocal quantum effects with Bose-Einstein condensates
Quantum system condensate quantum measurement quantum mechanics
2014/12/20
Quantum systems in Fock states do not have a phase. When two or more Bose-Einstein condensates are sent into interferometers, they nevertheless acquire a relative phase under the effect of quantum mea...
Interference of Bose-Einstein condensates: Quantum nonlocal effects
Quantum measurement quantum system condensate particle measurement and quantum mechanics
2014/12/19
Quantum systems in Fock states do not have a phase. When two or more Bose-Einstein condensates are sent into interferometers, they nevertheless acquire a relative phase under the effect of quantum mea...
Effects of boundaries and density inhomogeneity on states of vortex matter in Bose-Einstein condensates at finite temperature
Quantum vortices 3 d eddy current condensate vortex entanglement
2014/12/19
Most of the literature on quantum vortices predicting various states of vortex matter in three dimensions at finite temperatures in quantum fluids is based on the assumption of an extended and homogen...
Unusual States of Vortex Matter in Mixtures of Bose-Einstein Condensates on Rotating Optical Lattices
Superfluid parameter space vortex lattice parameters the mixture of condensed matter optical lattice
2014/12/19
In a single-component superfluid under rotation a broken symmetry in the order parameter space results in a broken translational symmetry in real space: a vortex lattice. If translational symmetry is ...
Preemptive vortex-loop proliferation in multicomponent interacting Bose-Einstein condensates
Parameter analysis the monte carlo calculation complex superfluid condensed matter
2014/12/19
We use analytical arguments and large-scale Monte Carlo calculations to investigate the nature of the phase transitions between distinct complex superfluid phases in a two-component Bose-Einstein cond...
Interferometry with independent Bose-Einstein condensates: parity as an EPR/Bell quantum variable
Condensate quantum mechanical interferometer binary particles
2014/12/19
When independent Bose-Einstein condensates (BEC), described quantum mechanically by Fock (number) states, are sent into interferometers, the measurement of the output port at which the particles are d...
Creation of NOON states by double Fock-state/Bose-Einstein condensates
State of single particle state variable theory the measuring accuracy measuring phase the condensate
2014/12/19
NOON states (states of the form |N〉 a |0〉 b +|0〉 a |N〉 b where a and b are single particle states) have been used for predicting violations of hidden-variable theories (Greenbe...
Classical phases and quantum angles in the description of interfering Bose-Einstein condensates
Condensate random variables measurements
2014/12/19
The interference of two Bose-Einstein condensates, initially in Fock states, can be described in terms of their relative phase, treated as a random unknown variable. This phase can be understood eithe...
Beyond Spontaneously Broken Symmetry in Bose-Einstein Condensates
Condensate treatment stage bell inequality particles quantum Angle the population oscillation
2014/12/19
Spontaneous symmetry breaking (SSB) for Bose-Einstein condensates cannot treat phase off-diagonal effects, and thus cannot explain Bell inequality violations. We describe another situation that is bey...
Dark-bright solitons and vortices in Bose-Einstein condensates
Bose-Einstein condensates dark-bright soliton Gross Pitaevskii equations
2014/12/8
This dissertation focuses on the properties of nonlinear waves in Bose-Einstein condensates (BECs). The fundamental model here is the nonlinear Schrodinger equation, the so-called Gross-Pitaevskii (GP...
张志涛研究员等在Bose-Einstein Condensates和Volterra-Lotka竞争系统研究中取得重要成果
张志涛研究员 Bose-Einstein Condensates Volterra-Lotka 竞争系统 研究 成果 极限
2012/2/23
自从物理学家提出用耦合Gross-Pitaevskii方程组来描述Bose-Einstein凝聚态以来，对这个奇异扰动的Schrodinger方程组及其极限中的phase separation现象出现了大量的研究, 许多国际著名数学家如现代变分理论创始人A. Ambrosetti以及E.N.Dancer,S.Terracini, T. Bartsch,Juncheng Wei等都有突出成果。
Bose-Einstein condensates in optical lattices: mathematical analysis and analytical approximate formulae
Bose-Einstein condensates stability of ground states analytical approximate formulae repulsive or attractive interatomic interactions
2011/9/6
Abstract: We show that the Gross-Pitaevskii equation with cubic nonlinearity, as a model to describe the one dimensional Bose-Einstein condensates loaded into a harmonically confined optical lattice, ...