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