Parametric amplification of matter waves in periodically translated optical lattices

被引：99

作者：

Gemelke, N ^{[1
]}

Sarajlic, E

Bidel, Y

Hong, S

Chu, S

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[2] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

[3] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.95.170404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We observe the sudden growth of small classes of Bloch waves from atomic Bose-Einstein condensates held in periodically translated optical lattices. The effect is explained by narrowband parametric amplification of Bloch waves from noise, due to phase-matched scattering of atom pairs out of the condensate. Amplification occurs above a well-defined modulation threshold, described by dynamic shaping of single-particle band structure.

引用

收藏

页数：4

相关论文

共 25 条

[1] Wannier functions analysis of the nonlinear Schrodinger equation with a periodic potential [J].

Alfimov, GL ;

Kevrekidis, PG ;

Konotop, VV ;

Salerno, M .

PHYSICAL REVIEW E, 2002, 66 (04) :6

[2] Superfluid current disruption in a chain of weakly coupled Bose-Einstein condensates [J].

Cataliotti, FS ;

Fallani, L ;

Ferlaino, F ;

Fort, C ;

Maddaloni, P ;

Inguscio, M .

NEW JOURNAL OF PHYSICS, 2003, 5 :71.1-71.7

[3] Instabilities of a Bose-Einstein condensate in a periodic potential: an experimental investigation [J].

Cristiani, M ;

Morsch, O ;

Malossi, N ;

Jona-Lasinio, M ;

Anderlini, M ;

Courtade, E ;

Arimondo, E .

OPTICS EXPRESS, 2004, 12 (01) :4-10

[4] Four-wave mixing with matter waves [J].

Deng, L ;

Hagley, EW ;

Wen, J ;

Trippenbach, M ;

Band, Y ;

Julienne, PS ;

Simsarian, JE ;

Helmerson, K ;

Rolston, SL ;

Phillips, WD .

NATURE, 1999, 398 (6724) :218-220

[5] AC and DC fields in optical lattices: quasienergy band structure [J].

Diener, R ;

Niu, Q .

JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, 2000, 2 (05) :618-627

[6] Squeezing and entanglement of atomic beams [J].

Duan, LM ;

Sorensen, A ;

Cirac, JI ;

Zoller, P .

PHYSICAL REVIEW LETTERS, 2000, 85 (19) :3991-3994

[7] Bright Bose-Einstein gap solitons of atoms with repulsive interaction [J].

Eiermann, B ;

Anker, T ;

Albiez, M ;

Taglieber, M ;

Treutlein, P ;

Marzlin, KP ;

Oberthaler, MK .

PHYSICAL REVIEW LETTERS, 2004, 92 (23) :230401-1

[8] Observation of dynamical instability for a Bose-Einstein condensate in a moving 1D optical lattice [J].

Fallani, L ;

De Sarlo, L ;

Lye, JE ;

Modugno, M ;

Saers, R ;

Fort, C ;

Inguscio, M .

PHYSICAL REVIEW LETTERS, 2004, 93 (14) :140406-1

[9]

GEMELKE N, IN PRESS

[10] Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms [J].

Greiner, M ;

Mandel, O ;

Esslinger, T ;

Hänsch, TW ;

Bloch, I .

NATURE, 2002, 415 (6867) :39-44