Quantum threshold for optomechanical self-structuring in a Bose-Einstein condensate

G. R. M. Robb, E. Tesio, G.-L. Oppo, W. J. Firth, T. Ackemann, R. Bonifacio

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Abstract

Theoretical analysis of the optomechanics of degenerate bosonic atoms with a single feedback mirror shows that self-structuring occurs only above an input threshold that is quantum mechanical in origin. This threshold also implies a lower limit to the size (period) of patterns that can be produced in a condensate for a given pump intensity. These thresholds are interpreted as due to the quantum rigidity of Bose-Einstein condensates, which has no classical counterpart. Above the threshold, the condensate self-organizes into an ordered supersolid state with a spatial period self-selected by optical diffraction.
Original languageEnglish
Article number173903
Number of pages5
JournalPhysical Review Letters
Volume114
Issue number17
DOIs
Publication statusPublished - 1 May 2015

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Keywords

  • optomechanical self-organization
  • optomechanical nonlinearities
  • Bose-Einstein condensate

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