Time-reversal operation of tunneling dynamics of Bose-Einstein condensates in optical lattices

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/3936
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Title
Time-reversal operation of tunneling dynamics of Bose-Einstein condensates in optical lattices
Author
氏名 Tsukada Noriaki
ヨミ ツカダ ノリアキ
別名 塚田 紀昭
氏名 Yoshida Hiroyuki
ヨミ ヨシダ ヒロユキ
別名
氏名 Suzuki Takashi
ヨミ スズキ タケシ
別名
NDC
420
Abstract

We propose schemes that can perform perfect time-reversal operation of the tunneling dynamics of Bose-
Einstein condensates in optical lattices. One of the time-reversal schemes is to reverse the sign of the tunneling
coefficient by a time-periodic potential, maintaining its magnitude at a constant value. The other scheme
utilizes a staggered 0- phase imprinting on the optical lattices. If the reversal of the tunneling coefficient or
the phase imprinting is performed at = p, the initial distribution of the condensates is regained at =2 p.
Although the nonlinear interatomic interaction deteriorates the fidelity of the time-reversal operation, if the sign
of the nonlinearity is reversed simultaneously with the phase imprinting at = p, the time-reversal operation at
=2 p becomes nearly perfect.

Journal Title
Physical review. Ser. 3. A, Atomic, molecular, and optical physics
Volume
78
Issue
1
Spage
015601-1
Epage
015601-4
Published Date
2008
Publisher
American Physical Society
ISSN
10502947
NCID
AA10764867
DOI
10.1103/PhysRevA.78.015601
Language
eng
NIIType
Journal Article
Text Version
出版社版
Rights
©2008 The American Physical Society
Relation URL
Old URI
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it-hiroshima