Enhancement of the Quantum Parameter Estimation in Yang-Baxter Systems


DURAN D.

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, vol.59, no.7, pp.2091-2100, 2020 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 59 Issue: 7
  • Publication Date: 2020
  • Doi Number: 10.1007/s10773-020-04481-6
  • Title of Journal : INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
  • Page Numbers: pp.2091-2100

Abstract

Since Yang-Baxter systems are easy to prepare and manipulate in quantum information experiments they are of increasing interest in the estimation of physical parameters. We investigate the dynamics of quantum Fisher information for the optimal estimation of parameters using two-qubit pure and different mixed states under action of the Yang-Baxter matrices. Although quantum Fisher information is monotonically decreasing under the action of a quantum channel, we have shown that mitigation of these decreases providing relative enhancements in quantum Fisher information is possible by means of Yang-Baxter matrices which model uniter quantum channels or noises.