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Entanglement of orbital angular momentum states between an ensemble of cold atoms and a photon

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 نشر من قبل Mikio Kozuma
 تاريخ النشر 2006
  مجال البحث فيزياء
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Recently, atomic ensemble and single photons were successfully entangled by using collective enhancement [D. N. Matsukevich, textit{et al.}, Phys. Rev. Lett. textbf{95}, 040405(2005).], where atomic internal states and photonic polarization states were correlated in nonlocal manner. Here we experimentally clarified that in an ensemble of atoms and a photon system, there also exists an entanglement concerned with spatial degrees of freedom. Generation of higher-dimensional entanglement between remote atomic ensemble and an application to condensed matter physics are also discussed.



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