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Off-diagonal quantum holonomy along density operators

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 نشر من قبل Stefan Filipp
 تاريخ النشر 2004
  مجال البحث فيزياء
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Uhlmanns concept of quantum holonomy for paths of density operators is generalised to the off-diagonal case providing insight into the geometry of state space when the Uhlmann holonomy is undefined. Comparison with previous off-diagonal geometric phase definitions is carried out and an example comprising the transport of a Bell-state mixture is given.



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