A1 Journal article – refereed

Quantum Speed Limit and Divisibility of the Dynamical Map




List of Authors: Teittinen Jose, Maniscalco Sabrina

Publisher: MDPI

Publication year: 2021

Journal: Entropy

Journal name in source: ENTROPY

Journal acronym: ENTROPY-SWITZ

Volume number: 23

Issue number: 3

Number of pages: 8

eISSN: 1099-4300

DOI: http://dx.doi.org/10.3390/e23030331

URL: https://www.mdpi.com/1099-4300/23/3/331


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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Last updated on 2021-24-06 at 09:22