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Journal of Optoelectronics·laser

Teleporting a Frequency-entangled State via Acoustic-Optic Modulator

Xiang Shao

Published Jan 1, 2003• 0 citations
OpenAlex

Abstract

A scheme was presented for teleporting a frequencyentangled state with the successful probability 25 % based on the principle of the acousticoptic modulator(AOM).One advantage of the scheme is that no Bellstate measurement is need and no any unitary transformation is performed. Ke words:quantum teleportation; frequency entanglement; acousticoptic modulator(AOM)

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Comment on “Manipulating the frequency-entangled states by an acoustic-optical modulator”

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A recent theoretical paper by Shi et al. [Phys. Rev. A 61, 064102 (2000)] proposes a scheme for entanglement swapping utilizing acousto-optic modulators without requiring a Bell-state measurement. In this Comment, we show that the proposal is flawed and no entanglement swapping can occur without measurement.

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A scheme was presented for teleporting a frequencyentangled state with the successful probability 25 % based on the principle of the acousticoptic modulator(AOM).One advantage of the scheme is that no Bellstate measurement is need and no any unitary transformation is performed. Ke words:quantum teleportation; frequency entanglement; acousticoptic modulator(AOM)
An effective teleportation scheme for an unknown ionic internal state via trapped ions is proposed without joint Bell-state measurement (BSM). In the constructed quantum channel process, we make use of entanglement swapping to avoid decrease in entanglement during the distributing of particles. Thus our scheme provides new prospects for quantum teleportation in a longer distance. The distinct advantage of our scheme is insensitive to the heating of vibrational mode. Furthermore, our scheme has no any individual optical access and the successful probability also can reach 1.