搜索结果: 1-15 共查到“物理学 Lattices”相关记录59条 . 查询时间(0.093 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
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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 ...
Hidden vortex lattices in a thermally paired superfluid
Rotation statistical mechanics model of superfluid vortex lattice vortex lattice
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2014/12/19
We study the evolution of rotational response of a statistical mechanical model of two-component superfluid with a nondissipative drag interaction as the system undergoes a transition into a paired su...
Discrete Parity-Time Symmetric Nonlinear Schrodinger Lattices
Lattices Parity-time Symmetry Schrodinger
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2014/12/8
In this thesis we summarize the classical cases of one-dimensional oligomers and two dimensional plaquettes, respecting the parity-time (PT ) symmetry. We examine different types of solutions of such ...
Elimination of transverse instability in stripe solitons by one-dimensional lattices
Elimination of transverse stripe solitons one-dimensional lattices Optics
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2012/5/28
We demonstrate theoretically and experimentally that the transverse instability of coherent soliton stripes can be greatly suppressed or totally eliminated when the soliton stripes propagate in a one-...
Spectra and ground states of one- and two-dimensional laser-driven lattices of ultracold Rydberg atoms
Spectra ground states one- and two-dimensional laser-driven lattices ultracold Rydberg atoms
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2012/2/28
We investigate static properties of laser-driven, ultracold Rydberg atoms confined to one- and two-dimensional uniform lattices in the limit of vanishing laser coupling. The spectral structure of squa...
Rotating superfluids in anharmonic traps: From vortex lattices to giant vortices
anharmonic traps vortex lattices giant vortices Quantum Gases
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2011/10/9
Abstract: We study a superfluid in a rotating anharmonic trap and explicate a rigorous proof of a transition from a vortex lattice to a giant vortex state as the rotation is increased beyond a limitin...
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
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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
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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
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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...
Solitary waves and their linear stability in nonlinear lattices
Solitary waves their linear stability nonlinear lattices Pattern Formation and Solitons
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2011/8/2
Abstract: Solitary waves in a general nonlinear lattice are discussed, employing as a model the nonlinear Schr\"odinger equation with a spatially periodic nonlinear coefficient. An asymptotic theory i...
Cluster state generation using van der Waals and dipole-dipole interactions in optical lattices
ipole-dipole interactions optical lattices
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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
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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...
Surface solitons in trilete lattices
soliton complex, spontaneous symmetry breaking
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2011/9/15
Fundamental solitons pinned to the interface between three semi-infinite one-dimensional nonlinear dynamical chains, coupled at a single site, are investigated. The light propagation in the respective...
The Continuum Limit of Toda Lattices for Random Matrices with Odd Weights
The Continuum Limit of Toda Lattices Random Matrices Odd Weights
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2011/7/25
Abstract: This paper is concerned with the asymptotic behavior of the free energy for a class of Hermitean random matrix models, with odd degree polynomial potential, in the large N limit. It continue...
Resonantly Enhanced Tunneling and Transport of Ultracold Atoms on Tilted Optical Lattices
Tunneling Ultracold Atoms Tilted Optical Lattices
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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 ...