Controllable double-well optical trap for cold atoms or molecules and its one-dimensional and two-dimensional optical lattices

2005 ◽  
Vol 22 (8) ◽  
pp. 1737 ◽  
Author(s):  
Xianming Ji ◽  
Jianping Yin
Keyword(s):  
Optical Lattices ◽  
Cold Atoms ◽  
Optical Trap ◽  
Two Dimensional ◽  
One Dimensional

A Novel Controllable Four-Well Optical Trap for Cold Atoms or Molecules and Its Two-Dimensional Optical Lattices

2008 ◽  
Vol 28 (2) ◽  
pp. 211-218
Author(s):  
陆俊发 Lu Junfa ◽  
纪宪明 Ji Xianming ◽  
周琦 Zhou Qi ◽  
印建平 Yin Jianping
Keyword(s):  
Optical Lattices ◽  
Cold Atoms ◽  
Optical Trap ◽  
Two Dimensional

Controllable Eight-Well Optical Trap and the Two-Dimensional Optical Lattices for Cold Atoms or Molecules

2008 ◽  
Vol 35 (7) ◽  
pp. 1017-1023
Author(s):  
陆俊发 Lu Junfa ◽  
纪宪明 Ji Xianming ◽  
印建平 Yin Jianping
Keyword(s):  
Optical Lattices ◽  
Cold Atoms ◽  
Optical Trap ◽  
Two Dimensional

scholarly journals BLOCH OSCILLATIONS OF COLD ATOMS IN OPTICAL LATTICES

2004 ◽  
Vol 18 (09) ◽  
pp. 1235-1260 ◽  
Author(s):  
ANDREY R. KOLOVSKY ◽  
HANS JÜRGEN KORSCH
Keyword(s):  
Optical Lattices ◽  
Cold Atoms ◽  
Two Dimensional ◽  
Neutral Atoms ◽  
Bloch Oscillations ◽  
General Introduction ◽  
General Validity ◽  
Correlated Systems ◽  
Recent Developments

This work is devoted to Bloch oscillations (BO) of cold neutral atoms in optical lattices. After a general introduction to the phenomenon of BO and its realization in optical lattices, we study different extentions of this problem, which account for recent developments in this field. These are two-dimensional BO, decoherence of BO, and BO in correlated systems. Although these problems are discussed in relation to the system of cold atoms in optical lattices, many of the results are of general validity and can be well applied to other systems showing the phenomenon of BO.

scholarly journals Interaction-induced conducting–non-conducting transition of ultra-cold atoms in one-dimensional optical lattices

2013 ◽  
Vol 15 (6) ◽  
pp. 063026 ◽  
Author(s):  
Chih-Chun Chien ◽  
Daniel Gruss ◽  
Massimiliano Di Ventra ◽  
Michael Zwolak
Keyword(s):  
Optical Lattices ◽  
Cold Atoms ◽  
One Dimensional

scholarly journals DECONFINEMENT AND COLD ATOMS IN OPTICAL LATTICES

2006 ◽  
Vol 20 (30n31) ◽  
pp. 5169-5178
Author(s):  
M. A CAZALILLA ◽  
A. F. HO ◽  
T. GIAMARCHI
Keyword(s):  
Optical Lattices ◽  
Cold Atoms ◽  
Three Dimensional ◽  
Optical Traps ◽  
High Dimensional ◽  
Interacting Particles ◽  
Controllable System ◽  
One Dimensional ◽  
Physical Systems ◽  
The One

Despite the fact that by now one dimensional and three dimensional systems of interacting particles are reasonably well understood, very little is known on how to go from the one dimensional physics to the three dimensional one. This is in particular true in a quasi-one dimensional geometry where the hopping of particles between one dimensional chains or tubes can lead to a dimensional crossover between a Luttinger liquid and more conventional high dimensional states. Such a situation is relevant to many physical systems. Recently cold atoms in optical traps have provided a unique and controllable system in which to investigate this physics. We thus analyze a system made of coupled one dimensional tubes of interacting fermions. We explore the observable consequences, such as the phase diagram for isolated tubes, and the possibility to realize unusual superfluid phases in coupled tubes systems.

scholarly journals Multiple Current Reversals Using Superimposed Driven Lattices

2020 ◽  
Vol 10 (4) ◽  
pp. 1357
Author(s):  
Aritra K. Mukhopadhyay ◽  
Peter Schmelcher
Keyword(s):  
Phase Space ◽  
Optical Lattices ◽  
Cold Atoms ◽  
Particle Dynamics ◽  
Two Dimensional ◽  
Atomic Ensembles ◽  
Directed Transport ◽  
Spatial Locations

We demonstrate that directed transport of particles in a two dimensional driven lattice can be dynamically reversed multiple times by superimposing additional spatially localized lattices on top of a background lattice. The timescales of such current reversals can be flexibly controlled by adjusting the spatial locations of the superimposed lattices. The key principle behind the current reversals is the conversion of the particle dynamics from chaotic to ballistic, which allow the particles to explore regions of the underlying phase space which are inaccessible otherwise. Our results can be experimentally realized using cold atoms in driven optical lattices and allow for the control of transport of atomic ensembles in such setups.

scholarly journals Generation of Atomic Optical Lattices by Dammann Gratings

2012 ◽  
Vol 2012 ◽  
pp. 1-9
Author(s):  
Xianming Ji ◽  
Shuwu Xu ◽  
Songbo Gu
Keyword(s):  
Optical Lattices ◽  
Cold Atoms ◽  
Light Wave ◽  
Optical Trap ◽  
Maximum Intensity ◽  
Spatial Period ◽  
Dipole Potential ◽  
Diffraction Intensity ◽  
Short Period ◽  
Lattice Density

We first calculated the diffraction intensity distributions of the Dammann gratings illuminated by Gaussian light wave. The empirical equations were deduced by numerical calculations to calculate the parameters, such as the spatial period, the maximum intensity, and the maximum intensity gradient, of the optical trap array composed by a set of Dammann gratings and a focus lens. Thus, a novel type of optical trap array for trapping cold atoms (or molecules) was proposed and its features were discussed. The results showed the optical trap array with very short period could be generated. High optical dipole potential could be presented so as to have strong attractive force to the atoms to form atomic optical lattices of high lattice density. Compared with the optical lattices formed by standing wave interferences of CO2 laser, there are many unique advantages of which are formed by Dammann gratings.

A one-dimensional self-gravitating stellar gas

1966 ◽  
Vol 25 ◽  
pp. 46-48 ◽  
Author(s):  
M. Lecar
Keyword(s):  
Gravitational Field ◽  
Phase Space ◽  
Motion Picture ◽  
Space Distribution ◽  
Two Dimensional ◽  
One Dimensional ◽  
Phase Space Distribution ◽  
Dimensional Phase Space ◽  
The Mean

“Dynamical mixing”, i.e. relaxation of a stellar phase space distribution through interaction with the mean gravitational field, is numerically investigated for a one-dimensional self-gravitating stellar gas. Qualitative results are presented in the form of a motion picture of the flow of phase points (representing homogeneous slabs of stars) in two-dimensional phase space.

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