Results 1 to 10 of about 212 (106)

Interplay between Non-Markovianity of Noise and Dynamics in Quantum Systems

open access: yesEntropy, 2023
The non-Markovianity of open quantum system dynamics is often associated with the bidirectional interchange of information between the system and its environment, and it is thought to be a resource for various quantum information tasks.
Arzu Kurt
doaj   +3 more sources

Quantum non-Markovianity: Overview and recent developments

open access: yesFrontiers in Quantum Science and Technology, 2023
In the current era of noisy intermediate-scale quantum (NISQ) devices, research on the theory of open system dynamics has a crucial role to play. In particular, understanding and quantifying memory effects in quantum systems is critical to gain a better ...
U. Shrikant   +2 more
doaj   +3 more sources

Non-Markovianity of a Central Spin Interacting with a Lipkin–Meshkov–Glick Bath via a Conditional Past–Future Correlation

open access: yesEntropy, 2020
Based on conditional past–future (CPF) correlations, we study the non-Markovianity of a central spin coupled to an isotropic Lipkin–Meshkov–Glick (LMG) bath.
Liping Han, Jian Zou, Hai Li, Bin Shao
doaj   +3 more sources

Quantifying Non-Markovianity in Open Quantum Dynamics

open access: yesSciPost Physics, 2022
Characterization of non-Markovian open quantum dynamics is both of theoretical and practical relevance. In a seminal work [Phys. Rev. Lett. 120, 040405 (2018)], a necessary and sufficient quantum Markov condition is proposed, with a clear operational ...
Chu Guo
doaj   +1 more source

Global correlation and local information flows in controllable non-Markovian open quantum dynamics

open access: yesnpj Quantum Information, 2022
In a fully-controllable experiment platform for studying non-Markovian open quantum dynamics, we show that the non-Markovianity could be investigated from the global and local aspects.
Xin-Yu Chen   +7 more
doaj   +1 more source

Memory Effects in Quantum Dynamics Modelled by Quantum Renewal Processes

open access: yesEntropy, 2021
Simple, controllable models play an important role in learning how to manipulate and control quantum resources. We focus here on quantum non-Markovianity and model the evolution of open quantum systems by quantum renewal processes.
Nina Megier   +3 more
doaj   +1 more source

Memory Effects in High-Dimensional Systems Faithfully Identified by Hilbert–Schmidt Speed-Based Witness

open access: yesEntropy, 2022
A witness of non-Markovianity based on the Hilbert–Schmidt speed (HSS), a special type of quantum statistical speed, has been recently introduced for low-dimensional quantum systems.
Kobra Mahdavipour   +4 more
doaj   +1 more source

Optimally preserving quantum correlations and coherence with eternally non-Markovian dynamics

open access: yesNew Journal of Physics, 2022
We demonstrate, both analytically and experimentally, the usefulness of non-Markovianity for preserving correlations and coherence in quantum systems.
Marek Miller   +7 more
doaj   +1 more source

Tunable Non-Markovianity for Bosonic Quantum Memristors

open access: yesEntropy, 2023
We studied the tunable control of the non-Markovianity of a bosonic mode due to its coupling to a set of auxiliary qubits, both embedded in a thermal reservoir. Specifically, we considered a single cavity mode coupled to auxiliary qubits described by the
Jia-Liang Tang   +3 more
doaj   +1 more source

Characterizing (non-)Markovianity through Fisher information

open access: yesSciPost Physics, 2023
A non-isolated physical system typically loses information to its environment, and when such loss is irreversible the evolution is said to be Markovian.
Paolo Abiuso, Matteo Scandi, Dario De Santis, Jacopo Surace
doaj   +1 more source

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