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Seeing topological order in time-of-flight measurements

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 نشر من قبل Emilio Alba
 تاريخ النشر 2011
  مجال البحث فيزياء
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In this work we provide a general methodology to directly measure topological order in cold atom systems. As an application we propose the realisation of a characteristic topological model, introduced by Haldane, using optical lattices loaded with fermionic atoms in two internal states. We demonstrate that time-of-flight measurements directly reveal the topological order of the system in the form of momentum space skyrmions.



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