On the Josephson effect in a Bose–Einstein condensate subject to a density-dependent gauge potential

Matthew James Edmonds, Manuel Valiente Cifuentes, Patrik Ohberg

Research output: Contribution to journalArticle

Abstract

We investigate the coherent dynamics of a Bose-Einstein condensate in a double well, subject to a density-dependent gauge potential. Further, we derive the nonlinear Josephson equations that allow us to understand the many-body system in terms of a classical Hamiltonian that describes the motion of a nonrigid pendulum with an initial angular offset. Finally we analyse the phase-space trajectories of the system, and describe how the self-trapping is affected by the presence of an interacting gauge potential.

Original languageEnglish
Article number134013
Number of pages6
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume46
Issue number13
DOIs
Publication statusPublished - 14 Jul 2013

Fingerprint

Josephson effect
condensates
pendulums
Bose-Einstein condensates
trapping
trajectories

Keywords

  • NEUTRAL ATOMS
  • MAGNETIC-FIELDS
  • DOUBLE-WELL
  • PHASE
  • SOLITONS
  • LATTICES

Cite this

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abstract = "We investigate the coherent dynamics of a Bose-Einstein condensate in a double well, subject to a density-dependent gauge potential. Further, we derive the nonlinear Josephson equations that allow us to understand the many-body system in terms of a classical Hamiltonian that describes the motion of a nonrigid pendulum with an initial angular offset. Finally we analyse the phase-space trajectories of the system, and describe how the self-trapping is affected by the presence of an interacting gauge potential.",
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On the Josephson effect in a Bose–Einstein condensate subject to a density-dependent gauge potential. / Edmonds, Matthew James; Valiente Cifuentes, Manuel; Ohberg, Patrik.

In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 46, No. 13, 134013, 14.07.2013.

Research output: Contribution to journalArticle

TY - JOUR

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AU - Edmonds, Matthew James

AU - Valiente Cifuentes, Manuel

AU - Ohberg, Patrik

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Y1 - 2013/7/14

N2 - We investigate the coherent dynamics of a Bose-Einstein condensate in a double well, subject to a density-dependent gauge potential. Further, we derive the nonlinear Josephson equations that allow us to understand the many-body system in terms of a classical Hamiltonian that describes the motion of a nonrigid pendulum with an initial angular offset. Finally we analyse the phase-space trajectories of the system, and describe how the self-trapping is affected by the presence of an interacting gauge potential.

AB - We investigate the coherent dynamics of a Bose-Einstein condensate in a double well, subject to a density-dependent gauge potential. Further, we derive the nonlinear Josephson equations that allow us to understand the many-body system in terms of a classical Hamiltonian that describes the motion of a nonrigid pendulum with an initial angular offset. Finally we analyse the phase-space trajectories of the system, and describe how the self-trapping is affected by the presence of an interacting gauge potential.

KW - NEUTRAL ATOMS

KW - MAGNETIC-FIELDS

KW - DOUBLE-WELL

KW - PHASE

KW - SOLITONS

KW - LATTICES

U2 - 10.1088/0953-4075/46/13/134013

DO - 10.1088/0953-4075/46/13/134013

M3 - Article

VL - 46

JO - Journal of Physics B: Atomic, Molecular and Optical Physics

JF - Journal of Physics B: Atomic, Molecular and Optical Physics

SN - 0953-4075

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