Excitation modes of bright matter-wave solitons

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Abstract

We experimentally study the excitation modes of bright matter-wave solitons in a quasi-one-dimensional geometry. The solitons are created by quenching the interactions of a Bose-Einstein condensate of cesium atoms from repulsive to attractive in combination with a rapid reduction of the longitudinal confinement. A deliberate mismatch of quench parameters allows for the excitation of breathing modes of the emerging soliton and for the determination of its breathing frequency as a function of atom number and confinement. In addition, we observe signatures of higher-order solitons and the splitting of the wave packet after the quench. Our experimental results are compared to analytical predictions and to numerical simulations of the one-dimensional Gross-Pitaevskii equation.
LanguageEnglish
Article number123602
Number of pages5
JournalPhysical Review Letters
Volume123
Issue number12
Early online date17 Sep 2019
DOIs
Publication statusPublished - 17 Sep 2019

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solitary waves
breathing
excitation
Bose-Einstein condensates
cesium
wave packets
atoms
emerging
quenching
signatures
geometry
predictions
simulation
interactions

Keywords

  • bright matter-wave solitons
  • excitation modes
  • Bose-Einstein

Cite this

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title = "Excitation modes of bright matter-wave solitons",
abstract = "We experimentally study the excitation modes of bright matter-wave solitons in a quasi-one-dimensional geometry. The solitons are created by quenching the interactions of a Bose-Einstein condensate of cesium atoms from repulsive to attractive in combination with a rapid reduction of the longitudinal confinement. A deliberate mismatch of quench parameters allows for the excitation of breathing modes of the emerging soliton and for the determination of its breathing frequency as a function of atom number and confinement. In addition, we observe signatures of higher-order solitons and the splitting of the wave packet after the quench. Our experimental results are compared to analytical predictions and to numerical simulations of the one-dimensional Gross-Pitaevskii equation.",
keywords = "bright matter-wave solitons, excitation modes, Bose-Einstein",
author = "Carli, {Andrea Di} and Colquhoun, {Craig D.} and Grant Henderson and Stuart Flannigan and Gian-Luca Oppo and Daley, {Andrew J.} and Stefan Kuhr and Elmar Haller",
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T1 - Excitation modes of bright matter-wave solitons

AU - Carli, Andrea Di

AU - Colquhoun, Craig D.

AU - Henderson, Grant

AU - Flannigan, Stuart

AU - Oppo, Gian-Luca

AU - Daley, Andrew J.

AU - Kuhr, Stefan

AU - Haller, Elmar

PY - 2019/9/17

Y1 - 2019/9/17

N2 - We experimentally study the excitation modes of bright matter-wave solitons in a quasi-one-dimensional geometry. The solitons are created by quenching the interactions of a Bose-Einstein condensate of cesium atoms from repulsive to attractive in combination with a rapid reduction of the longitudinal confinement. A deliberate mismatch of quench parameters allows for the excitation of breathing modes of the emerging soliton and for the determination of its breathing frequency as a function of atom number and confinement. In addition, we observe signatures of higher-order solitons and the splitting of the wave packet after the quench. Our experimental results are compared to analytical predictions and to numerical simulations of the one-dimensional Gross-Pitaevskii equation.

AB - We experimentally study the excitation modes of bright matter-wave solitons in a quasi-one-dimensional geometry. The solitons are created by quenching the interactions of a Bose-Einstein condensate of cesium atoms from repulsive to attractive in combination with a rapid reduction of the longitudinal confinement. A deliberate mismatch of quench parameters allows for the excitation of breathing modes of the emerging soliton and for the determination of its breathing frequency as a function of atom number and confinement. In addition, we observe signatures of higher-order solitons and the splitting of the wave packet after the quench. Our experimental results are compared to analytical predictions and to numerical simulations of the one-dimensional Gross-Pitaevskii equation.

KW - bright matter-wave solitons

KW - excitation modes

KW - Bose-Einstein

U2 - 10.1103/PhysRevLett.123.123602

DO - 10.1103/PhysRevLett.123.123602

M3 - Article

VL - 123

JO - Physical Review Letters

T2 - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 12

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ER -