Matter waves and quantum tunneling engineered by time-dependent interactions

被引：3

作者：

Bludov, Yu. V. ^{[1
]}

Konotop, V. V. ^{[2
,3
]}

Salerno, M. ^{[4
,5
]}

机构：

[1] Univ Minho, Ctr Fis, P-4710057 Braga, Portugal

[2] Univ Lisbon, Ctr Fis Teor & Computac, P-1649003 Lisbon, Portugal

[3] Univ Lisbon, Fac Ciencias, Dept Fis, P-1749016 Lisbon, Portugal

[4] CNISM, Dipartimento Fis ER Caianiello, I-84084 Fisciano, SA, Italy

[5] Univ Salerno, Grp Collegato Salerno, Ist Nazl Fis Nucl, I-84084 Fisciano, SA, Italy

来源：

PHYSICAL REVIEW A | 2010年 / 81卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.81.053614

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the possibility of steering gap solitons in Bose-Einstein condensates loaded in optical lattices by means of time-dependent nonlinearities, which allow one to control in a nondestructive manner both Bloch oscillations and Landau-Zener tunneling (i.e., Rabi oscillations) across band gaps. As an example we show how to move a matter-wave soliton in real and in reciprocal space from a lower to higher bands, avoiding dynamical instabilities. This opens the possibility of experimental access to gap solitons of higher bands and forcing of soliton motion through a lattice via the Feshbach resonance technique.

引用

页数：5

共 17 条

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