Trace distance and linear entropy of qubit states: Role of initial qubit-environment correlations

Abstract

The role of initial qubit-environment correlations on trace distance between two qubit states is studied in the framework of non--Markovian pure dephasing. The growth of mixedness of reduced state quantified by linear entropy is shown to be related to the degree of initial qubit--environment correlations.

References in corpus (3)

• Efficient quantum state tomography
• Witness for initial system-environment correlations in open system dynamics
• Initial correlations in open system's dynamics: The Jaynes-Cummings model

Cited by in corpus (2)

• Quantum Non-Markovianity: Characterization, Quantification and Detection
• The dynamical role of initial correlation in the exactly solvable dephasing model