Transporting continuous quantum variables of individual light pulses

Opt Express. 2011 Jan 17;19(2):1360-6. doi: 10.1364/OE.19.001360.

Abstract

We experimentally demonstrate transporting continuous quantum variables of individual light pulses at telecommunication wavelengths by using continuous-variable Bell measurements and post-processing displacement techniques. Time-domain pulsed homodyne detectors are used in the Bell measurements and the quantum variables of input light are transported pulse-by-pulse. Fidelity of F = 0.57±0.03 is experimentally achieved with the aid of entanglement, which is higher than the bound (F(c) = 0.5) of the classical case in the absence of entanglement.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Computer Simulation
  • Light
  • Models, Theoretical*
  • Quantum Theory
  • Scattering, Radiation*
  • Signal Processing, Computer-Assisted*
  • Telecommunications