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Decoherence in a quantum harmonic oscillator monitored by a Bose-Einstein condensate

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 نشر من قبل Daniel Alonso
 تاريخ النشر 2010
  مجال البحث فيزياء
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We investigate the dynamics of a quantum oscillator, whose evolution is monitored by a Bose-Einstein condensate (BEC) trapped in a symmetric double well potential. It is demonstrated that the oscillator may experience various degrees of decoherence depending on the variable being measured and the state in which the BEC is prepared. These range from a `coherent regime in which only the variances of the oscillator position and momentum are affected by measurement, to a slow (power law) or rapid (Gaussian) decoherence of the mean values themselves.



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