Quantum speed limit and divisibility of the dynamical map

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date

2021-03

Department

Department of Applied Physics

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Language

en

Pages

8

Series

Entropy, Volume 23, issue 3

Abstract

The quantum speed limit (QSL) is the theoretical lower limit of the time for a quantum system to evolve from a given state to another one. Interestingly, it has been shown that non-Markovianity can be used to speed-up the dynamics and to lower the QSL time, although this behaviour is not universal. In this paper, we further carry on the investigation on the connection between QSL and non-Markovianity by looking at the effects of P-and CP-divisibility of the dynamical map to the quantum speed limit. We show that the speed-up can also be observed under P-and CP-divisible dynamics, and that the speed-up is not necessarily tied to the transition from P-divisible to non-P-divisible dynamics.

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Funding Information: Funding: This research was funded by the Academy of Finland Center of Excellence program (Project no. 312058) and the Vilho, Yrjö and Kalle Väisälä Foundation. Publisher Copyright: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

Keywords

Dynamical map, Open quantum system, Quantum speed limit

Other note

DOI

10.3390/e23030331

Citation

Teittinen, J & Maniscalco, S 2021, ' Quantum speed limit and divisibility of the dynamical map ', Entropy, vol. 23, no. 3, 331 . https://doi.org/10.3390/e23030331

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https://urn.fi/URN:NBN:fi:aalto-202104206232

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[article-cris] Perustieteiden korkeakoulu / SCI