Perfect routing of quantum information in regular cavity QED networks

Abstract

We introduce a scheme for perfect routing of quantum states and entanglement in regular cavity QED networks. The couplings between the cavities are quasi-uniform and each cavity is doped with a two-level atom. Quasi-uniform couplings leads the system to evolve in invariant subspaces. Combination the evolutions of the system in its invariant subspaces with quite simple local operations on atoms in the networks, gives the perfect routing of quantum states and entanglement through the network. To provide the protocol be robust due to decoherence arisen from photon loss, the field mode of the cavities are only virtually excited.

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Cited by in corpus (4)

• Transfer of arbitrary two qubit states via a spin chain
• Perfect quantum state transfer of hard-core bosons on weighted path graphs
• Enhancing quantum state transfer efficiency in binary-tree spin networks by partially collapsing measurements
• Effects of oscillatory deformations on the coherent and incoherent quantum transport