Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevE.78.036219
Title: Quantum ratchet accelerator without a bichromatic lattice potential
Authors: Wang, J. 
Gong, J. 
Issue Date: 19-Sep-2008
Citation: Wang, J., Gong, J. (2008-09-19). Quantum ratchet accelerator without a bichromatic lattice potential. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 78 (3) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevE.78.036219
Abstract: In a quantum ratchet accelerator system, a linearly increasing directed current can be dynamically generated without using a biased field. Generic quantum ratchet acceleration with full classical chaos constitutes a new element of quantum chaos and an interesting violation of a sum rule of classical ratchet transport. Here we propose a simple quantum ratchet accelerator model that can also generate linearly increasing quantum current with full classical chaos. This model does not require a bichromatic lattice potential. It is based on a variant of an on-resonance kicked-rotor system, periodically kicked by two optical lattice potentials of the same lattice constant, but with unequal amplitudes and a fixed phase shift between them. The dependence of the ratchet current acceleration rate on the system parameters is studied in detail. The cold-atom version of our quantum ratchet accelerator model should be realizable by introducing slight modifications to current cold-atom experiments. © 2008 The American Physical Society.
Source Title: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/115896
ISSN: 15393755
DOI: 10.1103/PhysRevE.78.036219
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

31
checked on Dec 4, 2022

WEB OF SCIENCETM
Citations

26
checked on Nov 25, 2022

Page view(s)

144
checked on Nov 24, 2022

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.