We discuss linear optical quantum teleportation in the Knill-Laflamme-Milburn scheme. We calculate the probability of faithful teleportation when one uses nonmaximally entangled states. We show that for single teleportation maximally entangled state is optimal. On the other hand for a sequence of teleportations nonmaximally entangled state is optimal. Hence, probability of faithful teleportation is nonmultiplicative. We also introduce measure of nonmultiplicativity and show that nonmultiplicativity increases with the number of teleportations.
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
Tel.: +1 703 830 6300
Fax: +1 703 830 2300 email@example.com
(Corporate matters and books only) IOS Press c/o Accucoms US, Inc.
For North America Sales and Customer Service
West Point Commons
Lansdale PA 19446
Tel.: +1 866 855 8967
Fax: +1 215 660 5042 firstname.lastname@example.org