Reply to comment on ‘Faithful teleportation of an unknown atomic state and a cavity field entangled state without Bell-state measurement’

2007 ◽  
Vol 40 (5) ◽  
pp. 1093-1093
Author(s):  
Zhen-Biao Yang
Keyword(s):  
Bell State ◽  
Atomic State ◽  
Entangled State ◽  
Cavity Field ◽  
Bell State Measurement ◽  
State Measurement

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.

Realization of an economical phase-covariant telecloning in separate cavities

2012 ◽  
Vol 12 (3&4) ◽  
pp. 334-345
Author(s):  
Bao-Long Fang ◽  
Tao Wu ◽  
Liu Ye
Keyword(s):  
Quantum Information ◽  
Bell State ◽  
Entangled State ◽  
Bell State Measurement ◽  
State Measurement ◽  
Photon Pulse ◽  
Separate Cavities

We present a scheme to realize an economical $1 \to 2$ phase-covariant telecloning in separate cavities. In the scheme, an entangled state between a photon pulse and the tapped atoms will be prepared through cavity-assisted interaction. Next, the Bell state measurement is execute on the photon pulse and a trapped atom or another photon pulse on which the quantum information is encoded. In this way, the system can provide symmetric (asymmetric) economical $1 \to 2$ phase-covariant telecloning.

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.

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