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Optik

An analytical investigation on the interactions between a squeezed and a coherent optical signal

Saibal Mitra, Sourangshu Mukhopadhyay

Published May 15, 2013• 4 citations
Publisher
DOI
10.1016/j.ijleo.2013.01.065

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This paper investigates an analytical expression of teleportation fidelity in the teleportation scheme of a single mode of electromagnetic field. The fidelity between the original squeezed coherent state and the teleported one is expressed in terms of the squeezing parameter r and the quantum channel parameter (two-mode squeezed state) p . The results of analysis show that the fidelity increases with the increase of the quantum channel parameter p , while the fidelity decreases with the increase of the squeezing parameter r of the squeezed state. Thus the coherent state ( r = 0) is the best quantum signal for continuous variable quantum teleportation once the quantum channel is built.