Generation of quantum switch and nonlocal fields with an external field in a high quality dispersive cavity

Chun Hua Yuan; Yong Chen Ou; Zhi Ming Zhang

doi:10.1016/j.optcom.2006.06.001

Generation of quantum switch and nonlocal fields with an external field in a high quality dispersive cavity

Chun Hua Yuan, Yong Chen Ou, Zhi Ming Zhang

Research output: Contribution to journal › Article › peer-review

Abstract

We present a scheme to prepare an optical "quantum switch", a superposition of "open" and "closed" states. The scheme is based on the interaction of an Λ-type three-level atom with a single-mode of quantized cavity field and an external classical driving field, in the regime where the atom and fields are highly detuned. We show how this interaction can be used to generate coherent states of the cavity field in contrast to the usual method used in microwave cavity QED of injecting a coherent state into a cavity. A combination of switches could be used to prepare a quantum superposition of coherent field states located simultaneously in two cavities. Compared with previous proposals, our scheme is simplified due to economizes the Ramsey zone and the time required for the state generation is short.

Original language	English
Pages (from-to)	282-285
Number of pages	4
Journal	Optics Communications
Volume	267
Issue number	1
DOIs	https://doi.org/10.1016/j.optcom.2006.06.001
State	Published - 1 Nov 2006
Externally published	Yes

Keywords

Cavity QED
Coherent states
Nonlocal fields
Quantum switch

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10.1016/j.optcom.2006.06.001

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keywords = "Cavity QED, Coherent states, Nonlocal fields, Quantum switch",

author = "Yuan, \{Chun Hua\} and Ou, \{Yong Chen\} and Zhang, \{Zhi Ming\}",

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T1 - Generation of quantum switch and nonlocal fields with an external field in a high quality dispersive cavity

AU - Yuan, Chun Hua

AU - Ou, Yong Chen

AU - Zhang, Zhi Ming

PY - 2006/11/1

Y1 - 2006/11/1

N2 - We present a scheme to prepare an optical "quantum switch", a superposition of "open" and "closed" states. The scheme is based on the interaction of an Λ-type three-level atom with a single-mode of quantized cavity field and an external classical driving field, in the regime where the atom and fields are highly detuned. We show how this interaction can be used to generate coherent states of the cavity field in contrast to the usual method used in microwave cavity QED of injecting a coherent state into a cavity. A combination of switches could be used to prepare a quantum superposition of coherent field states located simultaneously in two cavities. Compared with previous proposals, our scheme is simplified due to economizes the Ramsey zone and the time required for the state generation is short.

AB - We present a scheme to prepare an optical "quantum switch", a superposition of "open" and "closed" states. The scheme is based on the interaction of an Λ-type three-level atom with a single-mode of quantized cavity field and an external classical driving field, in the regime where the atom and fields are highly detuned. We show how this interaction can be used to generate coherent states of the cavity field in contrast to the usual method used in microwave cavity QED of injecting a coherent state into a cavity. A combination of switches could be used to prepare a quantum superposition of coherent field states located simultaneously in two cavities. Compared with previous proposals, our scheme is simplified due to economizes the Ramsey zone and the time required for the state generation is short.

KW - Cavity QED

KW - Coherent states

KW - Nonlocal fields

KW - Quantum switch

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U2 - 10.1016/j.optcom.2006.06.001

DO - 10.1016/j.optcom.2006.06.001

M3 - 文章

AN - SCOPUS:33749641281

SN - 0030-4018

VL - 267

SP - 282

EP - 285

JO - Optics Communications

JF - Optics Communications

IS - 1

ER -

Generation of quantum switch and nonlocal fields with an external field in a high quality dispersive cavity

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Keywords

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