Teleportation improvement by inconclusive photon subtraction

Details Teleportation improvement by inconclusive photon subtraction Teleportation improvement by inconclusive photon subtraction

2002-09-25

arxiv.org/abs/quant-ph/0209140v2

Phys. Rev. A vol 67, 032314 (2003)

Physics

Quantum Physics

slightly revised version, to appear in PRA

Scientific paper

10.1103/PhysRevA.67.032314

Inconclusive photon subtraction (IPS) is a conditional measurement scheme to force nonlinear evolution of a given state. In IPS the input state is mixed with the vacuum in a beam splitter and then the reflected beam is revealed by ON/OFF photodetection. When the detector clicks we have the (inconclusive) photon subtracted state. We show that IPS on both channels of an entangled twin-beam of radiation improves the fidelity of coherent state teleportation if the energy of the incoming twin-beam is below a certain threshold, which depends on the beam splitter transmissivity and the quantum efficiency of photodetectors. We show that the energy threshold diverges when the transmissivity and the efficiency approach unit and compare our results with that of previous works on {\em conclusive} photon subtraction.

Affiliated with

Also associated with

No associations

Rating

Teleportation improvement by inconclusive photon subtraction does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Teleportation improvement by inconclusive photon subtraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Teleportation improvement by inconclusive photon subtraction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-367106