Communications in Theoretical Physics

Teleportation of Unknown Atomic Entangled States Using GHZ Class States

Zhao Yan

Published Mar 1, 2008• 2 citations

Abstract

We propose two physical schemes, which can teleport unknown atomic entangled states from user A (Alice) to user B (Bob) via GHZ class states as quantum channel. The two schemes are both based on cavity QED techniques. In the two schemes, teleportation and distillation procedures can be realized simultaneously. The second teleportation scheme is more advantageous than the first one.

DOI: 10.1088/0253-6102/49/3/25

Related papers

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

Kuangwei Xiong

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.

Modern Physics Letters BJun 20, 20070 citations

Teleportation of unknown atomic entangled states via Greenberger–Horne–Zeilinger class states

K -W Xiong

A physical scheme for teleporting unknown atomic entangled states via three-atom non-maximally entangled states is proposed in cavity quantum electrodynamics. In this scheme, the Greenberger–Horne–Zeilinger class states are used as quantum channels. The most distinct feature of our scheme is that, not only the effects of the cavity decay and thermal field are eliminated, but also the teleportation and distillation procedure can be realized simultaneously.PACS Nos.: 03.67.Hk, 03.67.Pp

Canadian Journal of PhysicsJun 1, 20080 citations

Scheme for Teleportation of Unknown Entangled Atomic States via Cavity Decay

Zhang Li-hua, Zheng‐Yuan Xue, Yang Ming +1 more

We present a physical scheme to teleport an unknown atomic entangled state via cavity decay. In the teleportation process, four-particle Greenberger–Horne–Zeilinger (GHZ) state is used as quantum channel, and two unknown entangled atoms and two of four atoms in the four-particle GHZ state are trapped in four leaky cavities, respectively. Based on the joint detection of the photons leak out from the four cavities, we can teleport an unknown entangled state to two other remote atoms with certain probability and high fidelity.

Communications in Theoretical PhysicsOct 1, 20063 citations

Schemes for Probabilistic Teleportation of a Three-Atom GHZ Class State via Cavity QED

YI-CAI WANG, Liu Jin-Ming

Using a quantum channel composed of a two-atom and a three-atom nonmaximally entangled states, we present two schemes to teleport a three-atom GHZ class state via entanglement swapping in cavity QED with different success probabilities. The schemes can be respectively realized with the large-detuned vacuum cavities and with the large-detuned thermal cavities by separate atomic measurements after we choose appropriate atom-cavity-field interaction time.

Communications in Theoretical PhysicsSep 1, 20073 citations

Teleportation of A Two-particle Entangled State Via Cavity Quantum Electrodynamics

Hongcai Li

We propose a scheme for the teleportation of an unknown two-particle entangled EPR state without the Bell-state measurement.Alice needs to teleport an unknown two-particle EPR state to Bob.Her atoms and Bob's are prepared in the maximal entangled GHZ state,which forms the quantum channel.She sends two atoms through a single-mode cavity field,and drives them by a strong classical field at the same time.Throngh the interaction between the atoms and the cavity,the states of these atoms are evolved.After the interaction,Alice realizes the teleportation successfully.In the scheme,the effects of thermal field and cavity decay are all eliminated.The success probability is 1.0,and the fidelity is 1.0 too.

Acta Sinica Quantum OpticaJan 1, 20060 citations

Scheme for teleportation of an unknown atomic state via a cluster state in cavity QED

Zhuo‐Liang Cao, Da-Chuang Li

This paper proposes an experimentally feasible scheme for teleportation of an unknown two-atom entangled state, where a cluster state is used as the quantum channel. This scheme does not need any joint measurement. In addition, the successful probability and fidelity of teleportation can both reach 1.0. The current scheme can be realized within the current experimental technology.

Chinese Physics BJan 1, 20085 citations