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ENCRYPTION AND DECRYPTION FOR QUANTUM SECRET SHARING PROTOCOL WITH HOT TRAPPED IONS

WEN-XING YANG

Department of Physics, Southeast University, Nanjing 210096, China

Corresponding author.

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and

AI-XI CHEN

Department of Applied Physics, School of Basic Science, East China Jiaotong University, Nanchang 330013, China

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https://doi.org/10.1142/S021798490801536XCited by:9 (Source: Crossref)

Abstract

In this letter, a efficient scheme is proposed for the quantum secret encryption and decryption implementation for quantum secret sharing protocol with trapped ions in thermal motion, in which the effective Hamiltonian does not involve the external degree of freedom and thus the scheme is insensitive to the external state, allowing it to be thermal state. The proposed scheme requires no auxiliary states to assist intermediate atomic transitions and conditional quantum dynamics for quantum phase flip and quantum state diffusion. Besides, secret transmission using entanglement swapping also has been presented.

Keywords:

PACS: 03.67.Hk, 03.67.Lx, 03.65.Ud

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