Realization of a Townes Soliton in a Two-Component Planar Bose Gas

被引：38

作者：

Bakkali-Hassani, B. ^{[1
]}

Maury, C. ^{[1
]}

Zou, Y-Q ^{[1
]}

Le Cerf, E. ^{[1
]}

Saint-Jalm, R. ^{[3
]}

Castilho, P. C. M. ^{[2
]}

Nascimbene, S. ^{[1
]}

Dalibard, J. ^{[1
]}

Beugnon, J. ^{[1
]}

机构：

[1] Sorbonne Univ, ENS PSL Univ, Coll France, Lab Kastler Brossel,CNRS, 11 Pl Marcelin Berthelot, F-75005 Paris, France

[2] Univ Sao Paulo, Inst Fis Sao Carlos, CP 369, BR-13560970 Sao Carlos, Brazil

[3] Ludwig Maximilian Univ Munchen, Dept Phys, Schellingstr 4, D-80799 Munich, Germany

来源：

PHYSICAL REVIEW LETTERS | 2021年 / 127卷 / 02期

基金：

欧盟地平线“2020”;

关键词：

SPATIAL SOLITONS; PROPAGATION; BEAMS; DROPLETS; MEDIA;

D O I：

10.1103/PhysRevLett.127.023603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Most experimental observations of solitons are limited to one-dimensional (1D) situations, where they are naturally stable. For instance, in 1D cold Bose gases, they exist for any attractive interaction strength g and particle number N. By contrast, in two dimensions, solitons appear only for discrete values of gN, the so-called Townes soliton being the most celebrated example. Here, we use a two-component Bose gas to prepare deterministically such a soliton: Starting from a uniform bath of atoms in a given internal state, we imprint the soliton wave function using an optical transfer to another state. We explore various interaction strengths, atom numbers, and sizes and confirm the existence of a solitonic behavior for a specific value of gN and arbitrary sizes, a hallmark of scale invariance.

引用

页数：6

共 53 条

[1] Optically trapped atom interferometry using the clock transition of large 87Rb Bose-Einstein condensates [J].