Abstract

In spite of the long argument around Einstein, Podolsky and Rosen(EPR) paradox in quantum mechanics the research on the quantum nonlocality has led to a rapidly growing field of quantum information science in recent years The studying interest on the EPR beams is being extensively excited by the successful teleportation experiment of continuous quantum variables A teleportation scheme with bright squeezed light has been proposed theoretically Although high intensity correlated twin beams have been generated from Nondegenerate Optical Parametric Oscillators(NOPOs) operating above the threshold by several groups, unfortunately the frequencies of these twin beams are nondegenerate, so they can not provide the quantum entanglement required for teleportation of quantum state.

© 2000 IEEE