Dynamics in Yang-Baxter Systems: Coherence, Quantum Fisher Information and Quantum Thermometry

Duran D.

QUANTUM OPTICS AND INFORMATION MEETING 8, Kocaeli, Türkiye, 25 - 26 Nisan 2024, ss.28

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Kocaeli
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.28
  • Yozgat Bozok Üniversitesi Adresli: Evet

Özet

Since Yang-Baxter (YB) systems are easy to prepare and manipulate in quantum information experiments they are of increasing interest in many fields such as the estimation of physical parameters, dynamics of quantum coherence, quantum thermodynamics, and so on. We shall study the dynamics of quantum coherence and quantum Fisher information to estimate parameters, especially in the context of quantum thermometry using two-qubit states under the action of the Yang-Baxter matrices and Hamiltonians constructed by the YB equation. Although these quantities are monotonically decreasing under the action of a quantum channel in a noisy environment, it can be shown that mitigation of these decreases providing relative enhancements in quantum Fisher information and quantum coherence is possible through Yang-Baxter matrices that model unitary quantum channels or noises.