Quantum Speed Limit and Divisibility of the Dynamical Map



: Teittinen Jose, Maniscalco Sabrina

Publisher: MDPI

: 2021

: Entropy

: ENTROPY

: ENTROPY-SWITZ

: ARTN 331

: 23

: 3

: 8

: 1099-4300

DOI: https://doi.org/10.3390/e23030331

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

: https://research.utu.fi/converis/portal/detail/Publication/55093571


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.

Last updated on 2024-26-11 at 15:08