Quantum speed limit and divisibility of the dynamical map

Jose Teittinen*, Sabrina Maniscalco

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)
7 Downloads (Pure)

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.

Original languageEnglish
Article number331
Number of pages8
JournalEntropy
Volume23
Issue number3
DOIs
Publication statusPublished - Mar 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • Dynamical map
  • Open quantum system
  • Quantum speed limit

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