Generation of W States with Many Superconducting-Quantum-Interference-Devices in Cavity QED

We propose a scheme to generate the W states with many SQUIDs （superconducting-quantum-interferencedevices） in cavity QED via Raman transition. In this scheme, the transfer of quantum information between the SQUIDs and cavity is not required. And the cavity field is only virtually excited, thus the...

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Bibliographic Details
Published inCommunications in theoretical physics Vol. 54; no. 8; pp. 355 - 358
Main Author 詹志明
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.08.2010
Subjects
Raman
信息传递
腔QED
腔量子电动力学
衰减过程
超导量子
Online AccessGet full text
ISSN0253-6102
DOI10.1088/0253-6102/54/2/27

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Summary:We propose a scheme to generate the W states with many SQUIDs （superconducting-quantum-interferencedevices） in cavity QED via Raman transition. In this scheme, the transfer of quantum information between the SQUIDs and cavity is not required. And the cavity field is only virtually excited, thus the cavity decay is suppressed during the W states generation. The SQUIDs are always populated in the two ground states. Therefore, the scheme is insensitive to the spontaneous emission of the excited level of the SQUID and cavity decay.
Bibliography:TM26
11-2592/O3
W states, superconducting, Raman transition
O431
ISSN:0253-6102
DOI:10.1088/0253-6102/54/2/27