A SCHEME FOR IMPLEMENTATION OF DENSE CODING WITH W-CLASS STATES IN CAVITY QED

2009 ◽  
Vol 07 (01) ◽  
pp. 307-312 ◽  
Author(s):  
LIU YE ◽  
JUAN HE
Keyword(s):  
Cavity Qed ◽  
Cavity Mode ◽  
Dense Coding ◽  
Cavity Field ◽  
Quantum Dense Coding ◽  
Atomic States

An experimentally feasible scheme for implementing quantum dense coding in cavity QED is proposed. In the scheme a W-class state can first be prepared by letting the atoms interact simultaneously with a highly detuned cavity mode. Then the states coded on this W-class state can be exactly distinguished by detecting atomic states. The scheme is insensitive to the cavity field, and the quantum dense coding can be realized in a simple way.

SCHEME FOR IMPLEMENTING QUANTUM DENSE CODING USING MULTI-ATOM IN CAVITY QED

2008 ◽  
Vol 06 (03) ◽  
pp. 517-523 ◽  
Author(s):  
LIU YE ◽  
BAO-LONG FANG
Keyword(s):  
Cavity Qed ◽  
Thermal Field ◽  
Cavity Mode ◽  
Classical Field ◽  
Atomic State ◽  
Dense Coding ◽  
Quantum Dense Coding ◽  
Ghz States ◽  
Cavity Decay

We propose an experimentally feasible scheme for implementing quantum dense coding in cavity QED. In this scheme, the multi-atoms interact simultaneously with a highly detuned cavity mode, and are driven by a strong classical field. The scheme is insensitive to the cavity decay and the thermal field. Only one interaction between atoms and cavity is required. Multi-atom's GHZ-states can be exactly distinguished via detecting the atomic state, and the quantum dense coding can be realized in a simple way.

Scheme for implementing quantum dense coding via cavity QED

2003 ◽  
Vol 313 (5-6) ◽  
pp. 351-355 ◽  
Author(s):  
Xiu-Min Lin ◽  
Zheng-Wei Zhou ◽  
Peng Xue ◽  
Yong-Jian Gu ◽  
Guang-Can Guo
Keyword(s):  
Cavity Qed ◽  
Dense Coding ◽  
Quantum Dense Coding

DECOHERENCE-FREE MULTIPARTITE ATOMIC ENTANGLEMENT IN A CAVITY QED SYSTEM

2009 ◽  
Vol 07 (supp01) ◽  
pp. 229-235 ◽  
Author(s):  
MATTEO BINA ◽  
FEDERICO CASAGRANDE ◽  
ALFREDO LULLI
Keyword(s):  
Cavity Qed ◽  
Cavity Mode ◽  
Cavity Field ◽  
Analytical Results ◽  
Atomic Subsystem ◽  
Atomic Entanglement ◽  
Decoherence Free Subspaces

We present analytical results on entanglement and decoherence in a system of N strongly driven two-level atoms resonantly coupled to a dissipative cavity mode. In the specific cases of N = 3 and 4 qubits we show the existence of decoherence-free subspaces for the whole system and/or the atomic subsystem and we discuss examples where a multipartite qubit entanglement remains preserved. Also we illustrate the conditional preparation of cat-like states of the cavity field and the generation of atomic correlations.

Scheme for Quantum Dense Coding with Secret Sharing in Cavity QED

2008 ◽  
Vol 49 (2) ◽  
pp. 365-368 ◽  
Author(s):  
Zou Chang-Lin ◽  
Xue Zheng-Yuan ◽  
Cao Zhuo-Liang
Keyword(s):  
Secret Sharing ◽  
Cavity Qed ◽  
Dense Coding ◽  
Quantum Dense Coding

A simple scheme for implementing four-atom quantum dense coding in cavity QED

2010 ◽  
Vol 19 (1) ◽  
pp. 010309-5 ◽  
Author(s):  
Zheng Xiao-Juan ◽  
Xu Hui ◽  
Fang Mao-Fa ◽  
Zhu Kai-Cheng
Keyword(s):  
Cavity Qed ◽  
Dense Coding ◽  
Quantum Dense Coding ◽  
Simple Scheme

Scheme for implementing quantum dense coding with W -class state in cavity QED

2008 ◽  
Vol 17 (5) ◽  
pp. 1597-1600 ◽  
Author(s):  
He Juan ◽  
Ye Liu ◽  
Ni Zhi-Xiang
Keyword(s):  
Cavity Qed ◽  
Dense Coding ◽  
Quantum Dense Coding

A SCHEME FOR QUANTUM DENSE CODING IN CAVITY QED

2011 ◽  
Vol 25 (32) ◽  
pp. 4679-4685
Author(s):  
CHANG-LIN ZOU ◽  
ZHUO-LIANG CAO
Keyword(s):  
Quantum Mechanics ◽  
Quantum State ◽  
Quantum Electrodynamics ◽  
Cavity Qed ◽  
Cavity Quantum Electrodynamics ◽  
Quantum Nonlocality ◽  
Dense Coding ◽  
Quantum Dense Coding ◽  
Current Technology

Quantum mechanics allows one to encode the information in the superposition of a quantum state which embodies the nature of quantum nonlocality. Here we propose a realizable physical scheme for a multiparticle quantum dense coding (QDC) between two users in cavity quantum electrodynamics (QED). We also discuss the feasibility of our scheme within current technology.

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