scholarly journals Time-asymmetric quantum fluctuations in intensity-amplitude correlation for a driven cavity QED system

2020 ◽  
Vol 28 (1) ◽  
pp. 379
Author(s):  
Teng Zhao ◽  
Ze-an Peng ◽  
Guo-qing Yang ◽  
Guang-ming Huang ◽  
Gao-xiang Li
Keyword(s):  
Cavity Qed ◽  
Quantum Fluctuations ◽  
Driven Cavity ◽  
Asymmetric Quantum ◽  
Amplitude Correlation

BIDIRECTIONAL QUANTUM SECURE DIRECT COMMUNICATION IN DRIVEN CAVITY QED

2009 ◽  
Vol 23 (27) ◽  
pp. 3225-3234 ◽  
Author(s):  
CHUAN-JIA SHAN ◽  
JI-BING LIU ◽  
WEI-WEN CHENG ◽  
TANG-KUN LIU ◽  
YAN-XIA HUANG ◽  
...  
Keyword(s):  
Cavity Qed ◽  
Thermal Field ◽  
Success Probability ◽  
Bell State ◽  
Quantum Secure Direct Communication ◽  
Entanglement Swapping ◽  
Direct Communication ◽  
Driven Cavity ◽  
Cavity Decay ◽  
Probability Of Success

A theoretical scheme of bidirectional quantum secure direct communication is proposed in the context of driven cavity QED. We first present an entanglement swapping scheme in cavities where two atoms without previous interaction can be entangled with a success probability of unity. Then, based on a novel property of entanglement swapping, we propose a bidirectional quantum secure direct communication protocol, in which two legitimate users can exchange their different secret messages simultaneously in a direct way. The probability of success in our scheme is 1.0. This scheme does not involve apparent (or direct) Bell-state measurements and is insensitive to the cavity decay and the thermal field.

scholarly journals Quantum feedback in a weakly driven cavity QED system

2004 ◽  
Vol 70 (2) ◽  
Author(s):  
J. E. Reiner ◽  
W. P. Smith ◽  
L. A. Orozco ◽  
H. M. Wiseman ◽  
Jay Gambetta
Keyword(s):  
Cavity Qed ◽  
Driven Cavity ◽  
Quantum Feedback

scholarly journals The Controlled Teleportation of an Arbitrary Two-Atom Entangled State in Driven Cavity QED

2008 ◽  
Vol 48 (5) ◽  
pp. 1516-1522 ◽  
Author(s):  
Chuan-Jia Shan ◽  
Ji-Bing Liu ◽  
Tang-Kun Liu ◽  
Yan-Xia Huang ◽  
Hong Li
Keyword(s):  
Cavity Qed ◽  
Controlled Teleportation ◽  
Entangled State ◽  
Driven Cavity

SECRET SHARING OF N-ATOM ENTANGLED STATE IN CAVITY QED

2007 ◽  
Vol 18 (03) ◽  
pp. 343-349 ◽  
Author(s):  
ZHONG-XIAO MAN ◽  
YUN-JIE XIA ◽  
ZHAN-JUN ZHANG
Keyword(s):  
Secret Sharing ◽  
Cavity Qed ◽  
Thermal Field ◽  
Bell State ◽  
Entangled State ◽  
Quantum Channels ◽  
Driven Cavity ◽  
Bell State Measurement ◽  
State Measurement ◽  
Cavity Decay

We propose a scheme to secret sharing of an unknown N-atom entangled state in driven cavity QED. The scheme needs only atomic Bell states as the quantum channels and joint Bell-state measurement is unnecessary. In addition, the scheme is insensitive to the cavity decay and the thermal field.

QUANTUM SECRET SHARING IN DRIVEN CAVITY QED

2007 ◽  
Vol 05 (03) ◽  
pp. 335-342 ◽  
Author(s):  
CHUAN-JIA SHAN ◽  
ZHONG-XIAO MAN ◽  
YUN-JIE XIA ◽  
TANG-KUN LIU
Keyword(s):  
Quality Factor ◽  
Secret Sharing ◽  
Cavity Qed ◽  
Bell State ◽  
Quantum Secret Sharing ◽  
Driven Cavity ◽  
Bell State Measurement ◽  
State Measurement

We propose a protocol for implementing quantum secret sharing via EPR states in driven cavity QED. Both of the two receivers can read out the sender's secret if they cooperate. The protocol does not require the joint Bell-state measurement needed in the previous schemes. In the protocol the cavity is only virtually excited and thus the requirement on the quality factor of the cavity is greatly loosened.

Three-Party Quantum Secure Sharing Using a Four-Particle Cluster State and Driven Cavity QED

2010 ◽  
Vol 49 (8) ◽  
pp. 1775-1780
Author(s):  
C.-J. Shan ◽  
J.-B. Liu ◽  
T. Chen ◽  
W.-W. Cheng ◽  
T.-K. Liu ◽  
...  
Keyword(s):  
Cavity Qed ◽  
Cluster State ◽  
Particle Cluster ◽  
Driven Cavity

THE TELEPORTATION OF AN ARBITRARY TWO-ATOM ENTANGLED STATE IN DRIVEN CAVITY QED

2007 ◽  
Vol 05 (03) ◽  
pp. 359-366 ◽  
Author(s):  
CHUAN-JIA SHAN ◽  
ZHONG-XIAO MAN ◽  
YUN-JIE XIA ◽  
TANG-KUN LIU
Keyword(s):  
Cavity Qed ◽  
Thermal Field ◽  
Bell State ◽  
Ghz State ◽  
Entangled State ◽  
Driven Cavity ◽  
Bell State Measurement ◽  
State Measurement ◽  
Cavity Decay ◽  
Probability Of Success

We propose a scheme for the teleportation of an arbitrary two-atom entangled state |ϕ〉12 = a|gg〉12 + b|ge〉12 + c|eg〉12 + d|ee〉12 in driven QED. Two pairs of maximally two-atom entangled state are required as the quantum channel. This scheme does not involve apparent (or direct) Bell-state measurement and is insensitive to the cavity decay and the thermal field. Meanwhile this approach can be used to teleport the unknown multipartite GHZ state. The probability of success in our scheme can reach 1.0.

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