Atomic entanglement purification using photonic Faraday rotation

  • Authors:

  • Yu-Bo Sheng;Sheng-Yang Zhao;Jiong Liu;Lan Zhou

  • Affiliations:

  • Institute of Signal Processing Transmission, Nanjing University of Posts and Telecommunications, Nanjing, China 210003 and Key Lab of Broadband Wireless Communication and Sensor Network Technology ...;Institute of Signal Processing Transmission, Nanjing University of Posts and Telecommunications, Nanjing, China 210003 and Key Lab of Broadband Wireless Communication and Sensor Network Technology ...;Institute of Signal Processing Transmission, Nanjing University of Posts and Telecommunications, Nanjing, China 210003 and Key Lab of Broadband Wireless Communication and Sensor Network Technology ...;College of Mathematics and Physics, Nanjing University of Posts and Telecommunications, Nanjing, China 210003

  • Venue:
  • Quantum Information Processing
  • Year:
  • 2014

Quantified Score

Hi-index 0.00

Visualization

Abstract

We describe an entanglement purification protocol (EPP) for atomic entangled pair using photonic Faraday rotation. Through the two single-photon input---output process in cavity quantum electrodynamics (QED), it is shown that the high-quality entangled atomic states can be obtained from the low-quality mixed entangled atomic states. Different from other EPPs, the two pairs of mixed states do not need to intact directly. As the photonic Faraday rotation works on the low-Q cavities, this EPP is useful in both quantum communication and computation.