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Study of Minimum Assured Fidelity in Teleportation
Shivani A Kumar

Van Enk, Hirota and also Wang proposed a scheme to teleport a superposition of even and odd coherent states with the help of 50:50 using a beam splitter and phase shifters. These authors concluded that the probability for a successful teleportation is only 50%. In this paper, I have shown that by slightly altering the scheme, an almost perfect teleportation can be achieved for an appreciable mean number of photons. For mean number of photons equal to 3, the minimum assured fidelity is obtained almost equal to unity.

Keywords: Fidelity, Coherent states, Teleportation