Approximate conditional teleportation of a $$\varLambda $$ Λ -type three-level atomic state based on cavity QED method beyond Bell-state measurement

2017 ◽  
Vol 16 (8) ◽  
Author(s):  
N. Sehati ◽  
M. K. Tavassoly
Keyword(s):  
Cavity Qed ◽  
Bell State ◽  
Atomic State ◽  
Bell State Measurement ◽  
State Measurement

TELEPORTATION WITHOUT JOINT MEASUREMENT IN CAVITY QED

2006 ◽  
Vol 20 (19) ◽  
pp. 1183-1189
Author(s):  
ZHENG-YUAN XUE ◽  
YOU-MIN YI ◽  
ZHUO-LIANG CAO
Keyword(s):  
Quantum Electrodynamics ◽  
Cavity Qed ◽  
Cavity Mode ◽  
Bell State ◽  
Cavity Quantum Electrodynamics ◽  
Atomic State ◽  
Joint Measurement ◽  
Bell State Measurement ◽  
State Measurement

Schemes for the teleporting of the cavity mode state and the unknown atomic state are proposed in cavity quantum electrodynamics (QED) without joint Bell-state measurement (BSM). The presented schemes are implemented with separate atomic measurements instead of any type of joint measurement. The discussion of the scheme indicates that it can be realized by current technologies.

EFFICIENT SCHEME FOR TELEPORTATION OF UNKNOWN ATOMIC STATES USING NON-MAXIMALLY ENTANGLED STATES

2007 ◽  
Vol 21 (15) ◽  
pp. 923-927
Author(s):  
KUANG-WEI XIONG
Keyword(s):  
Cavity Qed ◽  
Bell State ◽  
Atomic State ◽  
Entangled States ◽  
Distinct Advantage ◽  
State Measurement ◽  
Cavity Decay ◽  
Efficient Scheme ◽  
Maximally Entangled States ◽  
Atomic States

We propose a feasible scheme for teleporting an unknown atomic state by using non-maximally entangled states in cavity QED. The distinct advantage of the scheme is that, not only can the teleportation and distillation procedure be realized simultaneously, but the scheme is also insensitive to the cavity decay and thermal field with the assistance of a strong classical driving field. In addition, the joint Bell-state measurement can be distinguished via detecting the atomic state.

SPLITTING QUANTUM INFORMATION WITH FIVE-ATOM ENTANGLED STATE IN CAVITY QED

2010 ◽  
Vol 08 (08) ◽  
pp. 1289-1299 ◽  
Author(s):  
XIAO-JIE YI ◽  
JIAN-MIN WANG ◽  
GUO-QIANG HUANG
Keyword(s):  
Quantum Information ◽  
Cavity Qed ◽  
Thermal Field ◽  
Bell State ◽  
Quantum Information Splitting ◽  
Entangled State ◽  
Bell State Measurement ◽  
State Measurement ◽  
Information Splitting

A realizable scheme is proposed for implementing quantum information splitting with five-atom entangled state in cavity QED, where we explicitly illustrate the procedure and analyze the security against the eavesdropping. The scheme does not involve Bell-state measurement and is insensitive to the cavity and the thermal field.

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.

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