Protecting quantum entanglement from amplitude damping Academic Article uri icon


  • Quantum entanglement is a critical resource for quantum information and quantum computation. However, entanglement of a quantum system is subjected to change due to the interaction with the environment. One typical result of the interaction is the amplitude damping that usually results in the reduction of the entanglement. Here we propose a protocol to protect quantum entanglement from the amplitude damping by applying Hadamard and CNOT gates. As opposed to some recently studied methods, the scheme presented here does not require weak measurement in the reversal process, leading to a faster recovery of entanglement. We propose a possible experimental implementation based on linear optical system.

published proceedings

  • Journal of Physics B: Atomic, Molecular and Optical Physics

altmetric score

  • 1

author list (cited authors)

  • Liao, Z., Al-Amri, M., & Zubairy, M. S.

citation count

  • 11

complete list of authors

  • Liao, Zeyang||Al-Amri, M||Zubairy, M Suhail

publication date

  • July 2013