Superbroadcasting of harmonic oscillators mixed states

Details Superbroadcasting of harmonic oscillators mixed states Superbroadcasting of harmonic oscillators mixed states

2006-09-06

arxiv.org/abs/quant-ph/0609046v1

Optics and Spectroscopy 103, 170 (2007)

Physics

Quantum Physics

9 pages, 1 figure, revtex4, to appear in the Proceedings of ICQO2006, Minsk, May 2006

Scientific paper

10.1134/S0030400X07070259

We consider the problem of broadcasting quantum information encoded in the displacement parameter for an harmonic oscillator, from N to M>N copies of a thermal state. We show the Weyl-Heisenberg covariant broadcasting map that optimally reduces the thermal photon number, and we prove that it minimizes the noise in conjugate quadratures at the output for general input states. We find that from two input copies broadcasting is feasible, with the possibility of simultaneous purification (superbroadcasting).

Affiliated with

Also associated with

No associations

Rating

Superbroadcasting of harmonic oscillators mixed states 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 Superbroadcasting of harmonic oscillators mixed states, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superbroadcasting of harmonic oscillators mixed states will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-418801