搜索结果: 1-15 共查到“理学 optical lattices”相关记录25条 . 查询时间(0.083 秒)
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 ...
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, ...
Theoretical description of two ultracold atoms in finite 3D optical lattices using realistic interatomic interaction potentials
Theoretical description two ultracold atoms finite 3D optical lattices realistic interatomic
2011/8/4
Abstract: A theoretical approach is described for an exact numerical treatment of a pair of ultracold atoms interacting via a central potential that are trapped in a finite three-dimensional optical l...
Defect Solitons in PT Symmetric Optical lattices with nonlocal nonlinearity
Defect Solitons PT Symmetric Optical lattices nonlocal nonlinearity
2011/8/3
Abstract: The existence and stability of defect solitons in parity-time (PT) symmetric optical lattices with nonlocal nonlinearity are reported. Fundamental solitons are found in the semi-infinite gap...
Perturbation Theory for PT-Symmetric Sinusoidal Optical Lattices at the Symmetry-Breaking Threshold
PT-Symmetric Sinusoidal Optical the Symmetry-Breaking Threshold
2011/8/31
The PT symmetric potential V0[cos(2x/a)+i sin(2x/a)] has a completely real spectrum for ≤ 1, and begins to develop complex eigenvalues for > 1. At the
symmetry-breaking threshold = 1 some of...
Cluster state generation using van der Waals and dipole-dipole interactions in optical lattices
ipole-dipole interactions optical lattices
2011/9/9
We present a scalable method for generation of a cluster state for measurement-based quantum computing using van der Waals or dipole-dipole interactions between neutral atoms or polar molecules in an ...
Characterization of excited states of ultracold atoms in optical lattices
Characterization of excited states ultracold atoms optical lattices
2011/9/15
Loading ultracold atoms in an optical lattice from a Bose-Einstein condensate is generally a nonadiabatic process resulting in the dynamical excitation of a wavepacket, a combination of several eigens...
Nonlinear localized modes in dipolar Bose-Einstein condensates in optical lattices
Nonlinear localized modes dipolar Bose-Einstein condensates condensates optical lattices
2011/7/7
The modulational instability and discrete matter wave solitons in dipolar BEC, loaded into a deep optical lattice, are investigated analytically and numerically. The process of modulational instabilit...
Resonantly Enhanced Tunneling and Transport of Ultracold Atoms on Tilted Optical Lattices
Tunneling Ultracold Atoms Tilted Optical Lattices
2011/9/9
We investigate the resonantly enhanced tunneling dynamics of ultracold bosons loaded on a tilted 1-D optical lattice, which can be used to simulate a chain of Ising spins and associated quantum phase ...
Quantum criticality in disordered bosonic optical lattices
Quantum criticality disordered bosonic optical lattices
2010/11/25
Using the exact Bose-Fermi mapping, we study universal properties of ground-state density distributions and finite-temperature quantum critical behavior of one-dimensional hard-core bosons in trapped ...
Repulsively-bound exciton-biexciton states in high-spin fermions in optical lattices
Repulsively-bound exciton-biexciton states optical lattices
2010/11/17
We show that the interplay between spin-changing collisions and quadratic Zeeman coupling
provides a novel mechanism for the formation of repulsively bound composites in high-spin fermions,which we i...
Matter-wave 2D solitons in crossed linear and nonlinear optical lattices
Matter-wave 2D solitons crossed linear nonlinear optical lattices
2010/11/16
It is demonstrated the existence of multidimensional matter-wave solitons in a crossed optical lattice (OL) with linear OL in the $x-$direction and nonlinear OL (NOL) in the $y-$direction, where the ...
Mixture of Tonks-Girardeau gas and Fermi gas in one-dimensional optical lattices
Mixture of Tonks-Girardeau gas Fermi gas one-dimensional optical lattices
2010/11/25
We study the Bose-Fermi mixture with infinitely boson-boson repulsion and finite boson-Fermion
repulsion. By using a generalized Jordan-Wigner transformation, we show that the system can be
mapped t...
Simulating quantum-optical phenomena with cold atoms in optical lattices
quantum-optical phenomena cold atoms optical lattices
2010/11/4
We propose a scheme involving cold atoms trapped in optical lattices to observe different phenomena traditionally linked to quantum-optical systems. The basic idea consists of connecting the trapped a...
Use of Equivalent Hermitian Hamiltonian for $PT$-Symmetric Sinusoidal Optical Lattices
Equivalent Hermitian Hamiltonian $PT$-Symmetric Sinusoidal Optical Lattices
2010/10/27
show how the band structure and beam dynamics of non-Hermitian PT-symmetric sinusoidal optical lattices can be approached from the point of view of the equivalent Hermitian problem, obtained by an ana...