Results 11 to 20 of about 1,675 (175)

Quantum process identification: a method for characterizing non-markovian quantum dynamics

open access: yesNew Journal of Physics, 2019
Established methods for characterizing quantum information processes do not capture non-Markovian (history-dependent) behaviors that occur in real systems.
Ryan S Bennink, Pavel Lougovski
doaj   +3 more sources

Revealing the quantum nature of memory in non-Markovian dynamics on IBM quantum

open access: yesNew Journal of Physics
We investigate memory effects in non-Markovian dynamics on superconducting quantum processors provided by IBM Quantum. We use a collision-model approach to implement suitable single- and two-qubit dynamics with a gate-based quantum circuit.
Charlotte Bäcker   +2 more
doaj   +3 more sources

Temporal Ontology and Non-Markovian Quantum Dynamics

open access: yesPhilosophies
Recent arguments in favor of Presentism leverage Markovianity, the principle of the future’s events being able to be determined/influenced only by current events (and sufficiently near events).
Hong Joo Ryoo
doaj   +2 more sources

Non-Markovian dynamics of quantum discord [PDF]

open access: yesPhysical Review A, 2010
6 pages, 4 ...
Fanchini, F. F.   +4 more
openaire   +2 more sources

Assessing Non-Markovian Quantum Dynamics [PDF]

open access: yesPhysical Review Letters, 2008
We investigate what a snapshot of a quantum evolution--a quantum channel reflecting open system dynamics--reveals about the underlying continuous time evolution. Remarkably, from such a snapshot, and without imposing additional assumptions, it can be decided whether or not a channel is consistent with a time (in)dependent Markovian evolution, for which
Wolf, Michael Marc   +3 more
openaire   +4 more sources

Nonunital non-Markovianity of quantum dynamics [PDF]

open access: yesPhysical Review A, 2013
We show that Breuer-Laine-Piilo (BLP) non-Markovianity cannot capture the dynamical information in the non-unital aspect of the quantum dynamics. Moreover, we provide a measure on the effect of the non-unitality of quantum processes on the infinitesimal non-divisibility.
Liu, Jing   +2 more
openaire   +2 more sources

Quantum Speed Limit for Non-Markovian Dynamics [PDF]

open access: yesPhysical Review Letters, 2013
We derive a Margolus-Levitin type bound on the minimal evolution time of an arbitrarily driven open quantum system. We express this quantum speed limit time in terms of the operator norm of the nonunitary generator of the dynamics. We apply these results to the damped Jaynes-Cummings model and demonstrate that the corresponding bound is tight.
Deffner, Sebastian, Lutz, Eric
openaire   +3 more sources

Hierarchy of quantum correlations under non-Markovian dynamics [PDF]

open access: yesQuantum Information Processing, 2021
We investigate the dynamics of quantum correlations (QC) under the effects of reservoir memory, as a resource for quantum information and computation tasks. Quantum correlations of two-qubit systems are used for implementing quantum teleportation successfully, and for investigating how teleportation fidelity, violation of Bell-CHSH inequality, quantum ...
K. G. Paulson   +3 more
openaire   +3 more sources

Quantum correlations and coherence in a driven two-qubit system under non-Markovian dissipative effect

open access: yesResults in Physics, 2020
Highlights: • Qubit systems including classical driving field. • Time-dependent effect on the comportments of the quantum quantifiers in quantum technologies. • Markovian and non-Markovian dynamics. • Quantum coherence dynamics.
K. Berrada, Bahaaudin Raffah, H. Eleuch
doaj   +1 more source

Non-Markovian quantum dynamics and classical chaos [PDF]

open access: yesPhysical Review A, 2012
Closest to the published ...
Garcia-Mata, Ignacio   +2 more
openaire   +3 more sources

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