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Acta Physica Sinica

Transfer of quantum information via the two-photon process

Yang Xiong, Tong Zhao-Yang, Kuang Le-Man, 湖南师范大学物理与信息科学学院，长沙 410081

Published Jan 1, 2008• 6 citations
Publisher

Abstract

A scheme is presented for transferring quantum information based on interaction between Jaynes-Cummings model with large detuning and two two-level atoms. It can be shown that quantum information can be transferred from one atom to the other atom, or from the cavity mode to the two atoms by manipulating the interactions between cavity field and two atoms, and the information contained in the transferring atom or cavity mode is completely erased.

DOI
10.7498/aps.57.1689

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A scheme is presented for transferring quantum information based on interaction between Jaynes-Cummings model with large detuning and two two-level atoms. It can be shown that quantum information can be transferred from one atom to the other atom, or from the cavity mode to the two atoms by manipulating the interactions between cavity field and two atoms, and the information contained in the transferring atom or cavity mode is completely erased.
We present a scheme for transferring an unknown atomic entangled state via atom-cavity field interaction.This proposal,which has success probability of unit,is mainly employing two atoms for receiving the teleported state,and a two-mode cavity as the quantum channel.The two modes of the cavity have different frequencies and polarizations.So the two modes are distinguished by their frequencies and their orthogonal polarizations,hence they occupy distinct regions in the cavity.The atom interacts resonantly with the mode of the cavity according to the Jaynes-Cummings Hamiltonian,and when interaction between the atom and one of the two modes takes place,the other mode remains unaffected.This scheme does not require Bell-state measurement and any operations to reconstruct the initial state.This scheme can also be extended to transfer entangled state of N-atom.