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Journal of Fuyang Teachers College

Teleportation a Schrdinger Cat-state Via Jaynes-commings Model with Large Detuning

Lizhi Yu

Published Jan 1, 2008• 0 citations
OpenAlex

Abstract

The author proposes a scheme for teleportation of a Schrdinger cat-state by means of two-level atom-cavity state via the J-C model with large detuning.In this scheme,the ancillary particle is not needed,only a two-level atom and two single-model cavities are required.

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An experimentally feasible scheme for implementing teleportation of multi-atom cat-like states via partially entangled states is proposed.In the scheme,the probability of teleporting multi-atom cat-like is two times of square of the smaller coefficient of the superposition state serving as quantum channel,i.e.,the biggest probability of implementing teleportation with such class of entangled states.Moreover,our scheme is insensitive to cavity decay,because atoms are interacting with a large detuning vacuum cavity field.
An experimentally feasible scheme for implementing teleportation of multi-atom cat-like states in cavity QED is proposed. In the scheme the atoms interact simultaneously with a highly detuned cavity mode and are driven by a strong classical field, and the atomic state evolution is independent of cavity field state. Thus the scheme is insensitive to both the cavity decay and the thermal field, which is of importance from the experimental point of view. All the orthogonal and complete multi-atom GHZ states can be exactly distinguished only by one step, so our scheme can also be used for other purposes such as dense coding using multi-atom GHZ states as quantum channels.
A controlled teleportation scheme for single atomic quantum state is proposed in cavity QED.The scheme is based on the large detuning interaction of the atom-cavity system,therefore,it is not insensitive to the decoherence induced by cavity decay.The scheme also incorporates a third party to control the process,and only with the cooperation of the third party,the receiver can successfully reconstruct the original atom state.Finally,the feasibility of the experimentally realization of the scheme is also discussed.