Low-lying Collective Modes of a 1D Dipolar Quantum Gas in an Anharmonic Trap

Ji Xuan Hou; Li Ming Si; Da Bao Yang

doi:10.1007/s13538-017-0506-z

Low-lying Collective Modes of a 1D Dipolar Quantum Gas in an Anharmonic Trap

Ji Xuan Hou^*, Li Ming Si, Da Bao Yang

^*Corresponding author for this work

School of Integrated Circuits and Electronics

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The low-lying collective modes of an anharmonically confined one-dimensional ultracold dipolar Bose gas are investigated by using time-dependent variational method. The frequencies of dipole mode and breathing mode are obtained analytically in the full crossover regime from a Tonks-Girardeau gas to a dipolar density wave state. We find that the frequency shifts caused by quartic distortion of the potential can be amplified by interparticle interaction and the collapse and revival of the collective excitations can be observed in the anharmonic trap.

Original language	English
Pages (from-to)	377-381
Number of pages	5
Journal	Brazilian Journal of Physics
Volume	47
Issue number	4
DOIs	https://doi.org/10.1007/s13538-017-0506-z
Publication status	Published - 1 Aug 2017

Keywords

Collective excitation
Dipolar quantum gas
Time-dependent variational method

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10.1007/s13538-017-0506-z

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title = "Low-lying Collective Modes of a 1D Dipolar Quantum Gas in an Anharmonic Trap",

abstract = "The low-lying collective modes of an anharmonically confined one-dimensional ultracold dipolar Bose gas are investigated by using time-dependent variational method. The frequencies of dipole mode and breathing mode are obtained analytically in the full crossover regime from a Tonks-Girardeau gas to a dipolar density wave state. We find that the frequency shifts caused by quartic distortion of the potential can be amplified by interparticle interaction and the collapse and revival of the collective excitations can be observed in the anharmonic trap.",

keywords = "Collective excitation, Dipolar quantum gas, Time-dependent variational method",

author = "Hou, {Ji Xuan} and Si, {Li Ming} and Yang, {Da Bao}",

note = "Publisher Copyright: {\textcopyright} 2017, Sociedade Brasileira de F{\'i}sica.",

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T1 - Low-lying Collective Modes of a 1D Dipolar Quantum Gas in an Anharmonic Trap

AU - Hou, Ji Xuan

AU - Si, Li Ming

AU - Yang, Da Bao

PY - 2017/8/1

Y1 - 2017/8/1

N2 - The low-lying collective modes of an anharmonically confined one-dimensional ultracold dipolar Bose gas are investigated by using time-dependent variational method. The frequencies of dipole mode and breathing mode are obtained analytically in the full crossover regime from a Tonks-Girardeau gas to a dipolar density wave state. We find that the frequency shifts caused by quartic distortion of the potential can be amplified by interparticle interaction and the collapse and revival of the collective excitations can be observed in the anharmonic trap.

AB - The low-lying collective modes of an anharmonically confined one-dimensional ultracold dipolar Bose gas are investigated by using time-dependent variational method. The frequencies of dipole mode and breathing mode are obtained analytically in the full crossover regime from a Tonks-Girardeau gas to a dipolar density wave state. We find that the frequency shifts caused by quartic distortion of the potential can be amplified by interparticle interaction and the collapse and revival of the collective excitations can be observed in the anharmonic trap.

KW - Collective excitation

KW - Dipolar quantum gas

KW - Time-dependent variational method

UR - http://www.scopus.com/inward/record.url?scp=85024401486&partnerID=8YFLogxK

U2 - 10.1007/s13538-017-0506-z

DO - 10.1007/s13538-017-0506-z

M3 - Article

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SN - 0103-9733

VL - 47

SP - 377

EP - 381

JO - Brazilian Journal of Physics

JF - Brazilian Journal of Physics

IS - 4

ER -

Low-lying Collective Modes of a 1D Dipolar Quantum Gas in an Anharmonic Trap

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Keywords

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