搜索结果: 1-15 共查到“凝聚态物理学 Bose-Einstein condensates”相关记录19条 . 查询时间(0.08 秒)
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...
Spatial Landau-Zener-Stückelberg interference in spinor Bose-Einstein condensates
Spatial spinor Bose-Einstein condensates
2010/11/24
We investigate the St¨uckelberg oscillations of a spin-1 Bose-Einstein condensate subject to a
spatially inhomogeneous transverse magnetic field and a periodic longitudinal field. We show that the ti...
Finite-Temperature Density-Functional Theory of Bose-Einstein Condensates
Finite-Temperature Density-Functional Theory Bose-Einstein Condensates
2010/11/25
The thermodynamic approach to density functional theory (DFT) is used to derive a versatile
theoretical framework for the treatment of finite–temperature (and in the limit, zero temperature)Bose–Eins...
Fast production of large 23Na Bose-Einstein condensates in an optically plugged magnetic quadrupole trap
optically plugged magnetic quadrupole trap
2010/11/18
We demonstrate a fast production of large 23Na Bose-Einstein condensates in an optically plugged,magnetic quadrupole trap. A single global minimum of the trapping potential is generated by slightly di...
Spontaneously axisymmetry breaking phase in a binary mixture of spinor Bose-Einstein condensates
Spontaneously axisymmetry spinor Bose-Einstein condensates
2010/11/17
We study the ground state phases for a mixture of two atomic spin-1 Bose-Einstein condensates
(BECs) in the presence of a weak magnetic (B-) field. The ground state is found to contain a
broken-axis...
Size and Dynamics of Vortex Dipoles in Dilute Bose-Einstein Condensates
Size Dynamics of Vortex Dipoles Dilute Bose-Einstein Condensates
2010/11/18
Recently, Freilich et al. [Science 329, 1182 (2010)] experimentally discovered stationary states of vortex dipoles, pairs of vortices of opposite circulation, in dilute Bose–Einstein condensates.To ex...
Dynamical generation of phase-squeezed states in a two-component Bose-Einstein condensates
Dynamical generation of phase-squeezed states two-component Bose-Einstein condensates
2010/11/22
As an “input” state of a linear (Mach-Zehnder or Ramsey) interferometer, the phase-squeezed
state proposed by Berry and Wiseman exhibits the best sensitivity approaching to the Heisenberg
limit [Phy...
Synthetic magneto-hydrodynamics in Bose-Einstein condensates and routes to vortex nucleation
Synthetic magneto-hydrodynamics Bose-Einstein condensates routes to vortex nucleation
2010/11/24
Engineering of synthetic magnetic ux in Bose-Einstein condensates [Lin et al., Nature 462, 628
(2009)] has prospects for attaining the high vortex densities necessary to emulate the fractional quantu...
Phase diffusion of a two-component Bose-Einstein condensates: exact and short-time solutions for arbitrary coherent spin state
two-component Bose-Einstein condensates arbitrary coherent spin state
2010/11/23
We investigate phase diffusion of a two-component Bose-Einstein condensates prepared initially in arbitrary coherent spin state |θ0, φ0i. Analytical expression of the phase-diffusion time is presented...
Time-dependent self-trapping of Bose-Einstein Condensates in a double-well potential
Time-dependent self-trapping Bose-Einstein Condensates double-well potential
2010/10/27
Based on the mean-field approximation and the phase space analysis, we discuss the dynamics
of Bose-Einstein condensates in a double-well potential. By applying a periodic modulation to the coupling ...
Momentum-space engineering of gaseous Bose-Einstein condensates
Momentum-space engineering gaseous Bose-Einstein condensates
2010/10/21
We show how the momentum distribution of gaseous Bose–Einstein condensates can be shaped
by applying a sequence of standing–wave laser pulses. We present a theory of the effect of such a pulse sequen...
Non-Linear Dynamics of Continuously Measured Bose-Einstein Condensates in One-Dimensional Harmonic Traps
Non-Linear Dynamics Bose-Einstein Condensates One-Dimensional Harmonic Traps
2010/10/18
Continuous center-of-mass position measurements performed on an interacting harmonically
trapped Bose-gas are considered. Using both semi-analytical mean-field approach and completely
quantum numeri...
The understanding of disordered quantum systems is still far from being complete, despite many
decades of research on a variety of physical systems. In this review we discuss how Bose-Einstein conden...
Continuous atom laser with Bose-Einstein condensates involving three-body interactions
atom laser Bose-Einstein condensates three-body interactions
2010/4/2
We demonstrate, through numerical simulations, the emission of a coherent continuous matter wave of constant amplitude from a Bose-Einstein Condensate in a shallow optical dipole trap. The process is ...