Formation of Dispersive Shock Waves by Merging and Splitting Bose-Einstein Condensates

被引：130

作者：

Chang, J. J. ^{[1
]}

Engels, P. ^{[1
]}

Hoefer, M. A. ^{[2
]}

机构：

[1] Washington State Univ, Dept Phys & Astron, Pullman, WA 99164 USA

[2] Natl Inst Stand & Technol, Boulder, CO 80305 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.101.170404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The processes of merging and splitting dilute-gas Bose-Einstein condensates are studied in the nonadiabatic, high-density regime. Rich dynamics are found. Depending on the experimental parameters, uniform soliton trains containing more than ten solitons or the formation of a high-density bulge as well as dispersive shock waves are observed experimentally within merged BECs. Our numerical simulations indicate the formation of many vortex rings. In the case of splitting a BEC, the transition from sound-wave formation to dispersive shock-wave formation is studied by use of increasingly stronger splitting barriers. These experiments realize prototypical dispersive shock situations.

引用

页数：4

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