The prospects of realizing teleportation of continuous quantum variable are limited by the available strength of squeezing of the entangled two-mode state. Our objective here is to increase the fidelity by improving the entanglement of the shared state using conditional photon-number measurement. Even though photons have been subtracted, the mean number of photons remaining in the transmitted state has increased. The degree of entanglement is improved by CM of the numbers of photons n 1 and n 2 reflected at the beam-splitters BS 1 and BS 2 . Using these values as displacement parameters for shifting the quantum state of the mode 2 on the beam splitter BS , Bob creates the output state which imitates .
Teleportation is performed if the two detectors simultaneously register photons.