Quantum Information Processing using coherent states in cavity QED

Abstract

Using the highly detuned interaction between three-level $\Lambda$-type atoms and coherent optical fields, we can realize the C-NOT gates from atoms to atoms, optical fields to optical fields, atoms to optical fields and optical fields to atoms. Based on the realization of the C-NOT gates we propose an entanglement purification scheme to purify a mixed entangled states of coherent optical fields. The simplicity of the current scheme makes it possible that it will be implemented in experiment in the near future.

5 pages, no figure

References in corpus (5)

• Experimental quantum teleportation
• Coherent control of an atomic collision in a cavity
• Entangled coherent states: teleportation and decoherence
• Stimulated emission of polarization-entangled photons
• Entanglement purification for arbitrary unknown ionic states via linear optics

Cited by in corpus (5)

• A review on quantum information processing in cavities
• Cluster-type entangled coherent states
• Deterministic generation of large scale atomic W states
• Entanglement swapping for Bell states and Greenberger-Horne-Zeilinger states in qubit systems
• Bipartite quantum channels using multipartite cluster-type entangled coherent states