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Inseparability inequalities for higher order moments for bipartite systems
(IOP Publishing, 2005-10-07)
There are several examples of bipartite entangled states of continuous variables for which the existing criteria for entanglement using the inequalities involving the second-order moments are insufficient. We derive new ...
Implementing Deutsch-Jozsa algorithm using light shifts and atomic ensembles
(American Physical Society, 2005-01-27)
We present an optical scheme to implement the Deutsch-Jozsa algorithm using ac Stark shifts. The scheme uses an atomic ensemble consisting of four-level atoms interacting dispersively with a field. This leads to a Hamiltonian ...