Results 71 to 80 of about 1,155,601 (235)

Dissipative quantum chaos unveiled by stochastic quantum trajectories

open access: yesPhysical Review Research
We define quantum chaos and integrability in open quantum many-body systems as a dynamical property of single stochastic realizations, referred to as quantum trajectories.
Filippo Ferrari   +5 more
doaj   +1 more source

Detecting few-body quantum chaos: out-of-time ordered correlators at saturation

open access: yesJournal of High Energy Physics, 2022
We study numerically and analytically the time dependence and saturation of out-of-time ordered correlators (OTOC) in chaotic few-body quantum-mechanical systems: quantum Henon-Heiles system (weakly chaotic), BMN matrix quantum mechanics (strongly ...
Dragan Marković, Mihailo Čubrović
doaj   +1 more source

Quantum Chaos and Effective Thermalization [PDF]

open access: yesPhysical Review Letters, 2012
We demonstrate effective equilibration for unitary quantum dynamics under conditions of classical chaos. Focusing on the paradigmatic example of the Dicke model, we show how a constructive description of the thermalization process is facilitated by the Glauber $Q$ or Husimi function, for which the evolution equation turns out to be of Fokker-Planck ...
Altland, Alexander, Haake, Fritz
openaire   +4 more sources

Multiphoton Quantum Reservoirs For Robust Multidimensional Computing

open access: yesAdvanced Science, EarlyView.
Projective measurements reveal hidden multidimensional quantum networks within classical multiphoton fields, enabling robust quantum reservoirs for room‐temperature quantum simulation, prediction, and information processing. These networks transform noisy classical photonic platforms into scalable quantum computational architectures.
Mingyuan Hong   +10 more
wiley   +1 more source

Semi-Poisson Statistics in Relativistic Quantum Billiards with Shapes of Rectangles

open access: yesEntropy, 2023
Rectangular billiards have two mirror symmetries with respect to perpendicular axes and a twofold (fourfold) rotational symmetry for differing (equal) side lengths.
Barbara Dietz
doaj   +1 more source

Quantum Chaos Versus Classical Chaos: Why is Quantum Chaos Weaker? [PDF]

open access: yes, 2006
We discuss the questions: How to compare quantitatively classical chaos with quantum chaos? Which one is stronger? What are the underlying physical reasons?
Kroger, H.   +3 more
openaire   +2 more sources

Emergent classicality in continuous quantum measurements

open access: yes, 2013
We develop a classical theoretical description for nonlinear many-body dynamics that incorporates the back-action of a continuous measurement process. The classical approach is compared with the exact quantum solution in an example with an atomic Bose ...
Javanainen, Juha, Ruostekoski, Janne
core   +1 more source

Deciphering Intricacies in Directional CO2 Conversion From Electrolysis to CO2 Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This review will delve into the inherent connections and distinctions of CO2‐directed conversion in ECO2RR and CO2 batteries, in terms of product types, catalyst selection, catalytic mechanisms, and electrochemical performances, while proposing a benchmarking framework for the evaluation of CO2 batteries and innovative CO2 battery configurations for ...
Changfan Xu   +5 more
wiley   +1 more source

Structure and Spectroscopic Characterisation of Phenanthroline‐Based Iodobismuthate(III) Complexes Utilised for Raw Acoustic Signal Classification

open access: yesAdvanced Intelligent Discovery, EarlyView.
Memristors based on trimethylsulfonium (phenanthroline)tetraiodobismuthate have been utilised as a nonlinear node in a delayed feedback reservoir. This system allowed an efficient classification of acoustic signals, namely differentiation of vocalisation of the brushtail possum (Trichosurus vulpecula).
Ewelina Cechosz   +4 more
wiley   +1 more source

Quantum chaos in the Benjamini-Schramm limit

open access: yes, 2019
One of the fundamental problems in quantum chaos is to understand how high-frequency waves behave in chaotic environments. A famous but vague conjecture of Michael Berry predicts that they should look on small scales like Gaussian random waves.
Le Masson, Etienne
core   +1 more source

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