Efficient scheme for entangled states and quantum information transfer with trapped atoms in a resonator

doi:10.1088/1674-1056/20/9/090304

中国物理B ›› 2011, Vol. 20 ›› Issue (9): 90304-090304.doi: 10.1088/1674-1056/20/9/090304

Efficient scheme for entangled states and quantum information transfer with trapped atoms in a resonator

李蓬勃, 李福利

Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter of Ministry of Education, Department of Applied Physics, Xi'an Jiaotong University, Xi'an 710049, China

收稿日期:2011-02-10 修回日期:2011-03-24 出版日期:2011-09-15 发布日期:2011-09-15

Efficient scheme for entangled states and quantum information transfer with trapped atoms in a resonator

Li Peng-Bo(李蓬勃)^† and Li Fu-Li(李福利)

Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter of Ministry of Education, Department of Applied Physics, Xi'an Jiaotong University, Xi'an 710049, China

Received:2011-02-10 Revised:2011-03-24 Online:2011-09-15 Published:2011-09-15

摘要/Abstract

摘要： A protocol is proposed to generate atomic entangled states and implement quantum information transfer in a cavity quantum electrodynamics system. It utilizes Raman transitions or stimulated Raman adiabatic passages between two systems to entangle the ground states of two three-state Λ-type atoms trapped in a single mode cavity. It does not need the measurements on cavity field nor atomic detection and can be implemented in a deterministic fashion. Since the present protocol is insensitive to both cavity decay and atomic spontaneous emission, it may have some interesting applications in quantum information processing.

Abstract: A protocol is proposed to generate atomic entangled states and implement quantum information transfer in a cavity quantum electrodynamics system. It utilizes Raman transitions or stimulated Raman adiabatic passages between two systems to entangle the ground states of two three-state Λ-type atoms trapped in a single mode cavity. It does not need the measurements on cavity field nor atomic detection and can be implemented in a deterministic fashion. Since the present protocol is insensitive to both cavity decay and atomic spontaneous emission, it may have some interesting applications in quantum information processing.

Key words: cavity quantum electrodynamics, entangled states, quantum information transfer

中图分类号: (Entanglement production and manipulation)

03.67.Bg

03.67.Hk (Quantum communication) 42.50.Pq (Cavity quantum electrodynamics; micromasers)

李蓬勃, 李福利. Efficient scheme for entangled states and quantum information transfer with trapped atoms in a resonator[J]. 中国物理B, 2011, 20(9): 90304-090304.

Li Peng-Bo(李蓬勃) and Li Fu-Li(李福利) . Efficient scheme for entangled states and quantum information transfer with trapped atoms in a resonator[J]. Chin. Phys. B, 2011, 20(9): 90304-090304.

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Efficient scheme for entangled states and quantum information transfer with trapped atoms in a resonator

Efficient scheme for entangled states and quantum information transfer with trapped atoms in a resonator

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