A time-dependent model for teleportation of a quantum state of position and momentum
We present a time-dependent model for teleportation of an unknown quantum state of position and momentum. With this model, we analyze a situation in which Bob (receiver) is ignorant of the Hamiltonian that describes the time-evolution of a post-measurement state generated at Bob's site. We illustrate that the time-evolution of the post-measurement state deteriorates the fidelity of the quantum teleportation. We also illustrate a special situation in which a two-mode input state is transformed into a one-mode state by the teleportation. In addition, we discuss an optimal situation in which a high teleportation probability and a high degree of teleportation fidelity can be achieved.PACS Nos.: 03.65.w, 03.67.Hk