Xihua Yang, Yuanyuan Zhou, Min Xiao
We present a proof-of-principle way to generate nondegenerate multipartite
continuous-variable entanglements via atomic spin wave induced by the strong
coupling and probe fields in the Lambda-type electromagnetically induced
transparency configuration in an atomic ensemble. Quantum
correlated/anti-correlated and entangled Stokes and anti-Stokes fields,
simultaneously produced through scattering the applied laser fields off the
atomic spin wave, can be achieved. This method can, in principle, be extended
to flexibly and conveniently create multicolor multipartite entangled
narrow-band fields to any desired order with long correlation time, which may
find promising applications in quantum information processing and quantum
networks.
View original:
http://arxiv.org/abs/1201.6577
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