Time-optimal control of the purification of a qubit in contact with a structured environment

Fischer J, Basilewitsch D, Koch CP, Sugny D (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Physical Review A American Physical Society

Book Volume: 99

Article Number: 033410

Journal Issue: 3

DOI: 10.1103/PhysRevA.99.033410

Abstract

We investigate the time-optimal control of the purification of a qubit interacting with a structured environment, consisting of a strongly coupled two-level defect in interaction with a thermal bath. On the basis of a geometric analysis, we show for weak and strong interaction strengths that the optimal control strategy corresponds to a qubit in resonance with the reservoir mode. We investigate under which conditions qubit coherence and correlation between the qubit and the environment can speed up the control process.

Involved external institutions

Universität Kassel DE Germany (DE) Université Bourgogne Franche-Comté FR France (FR)

How to cite

APA:

Fischer, J., Basilewitsch, D., Koch, C.P., & Sugny, D. (2019). Time-optimal control of the purification of a qubit in contact with a structured environment. Physical Review A, 99(3). https://doi.org/10.1103/PhysRevA.99.033410

MLA:

Fischer, J., et al. "Time-optimal control of the purification of a qubit in contact with a structured environment." Physical Review A 99.3 (2019).

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