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 Damped Bloch oscillations of cold atoms in optical lattices

2002 ◽  
Vol 66 (5) ◽  
Author(s):  
A. R. Kolovsky ◽  
A. V. Ponomarev ◽  
H. J. Korsch
Keyword(s):  
Optical Lattices ◽  
Cold Atoms ◽  
Bloch Oscillations

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 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 THREE-SPIN INTERACTIONS AND ENTANGLEMENT IN OPTICAL LATTICES

2006 ◽  
Vol 04 (03) ◽  
pp. 541-549 ◽  
Author(s):  
JIANNIS K. PACHOS
Keyword(s):  
Phase Transitions ◽  
Optical Lattice ◽  
Optical Lattices ◽  
Ground States ◽  
Cold Atom ◽  
Quantum Systems ◽  
Two Dimensional ◽  
Spin Interactions ◽  
Recent Developments ◽  
Atomic Species

The entanglement properties of some novel quantum systems are studied that are inspired by recent developments in cold-atom technology. A triangular optical lattice of two atomic species can be employed to generate a variety of spin-1/2 Hamiltonians including effective three-spin interactions. A variety of one- or two-dimensional systems can thus be realized that possess multi-degenerate ground states or non-vanishing chirality. The properties of these ground states and their phase transitions are probed with appropriate measures such as the entropic entanglement and the spin chirality.

Probing Bloch oscillations using a slow-light sensor

2020 ◽  
Vol 9 (5) ◽  
pp. 243-246
Author(s):  
Pei-Chen Kuan ◽  
Chang Huang ◽  
Shau-Yu Lan
Keyword(s):  
Phase Shift ◽  
Optical Lattice ◽  
Cold Atoms ◽  
Slow Light ◽  
Internal State ◽  
Electromagnetically Induced Transparency ◽  
Bloch Oscillations ◽  
Bloch Oscillation ◽  
Induced Transparency ◽  
Transparency Condition

AbstractWe implement slow-light under electromagnetically induced transparency condition to measure the motion of cold atoms in an optical lattice undergoing Bloch oscillation. The motion of atoms is mapped out through the phase shift of light without perturbing the external and internal state of the atoms. Our results can be used to construct a continuous motional sensor of cold atoms.

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