Results 101 to 110 of about 1,557,339 (268)

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

Controlled Quantum State Transfer in a Spin Chain

open access: yes, 2007
Control of the transfer of quantum information encoded in quantum wavepackets moving along a spin chain is demonstrated. Specifically, based on a relationship with control in a paradigm of quantum chaos, it is shown that wavepackets with slow dispersion ...
G. Casati, Jiangbin Gong, Paul Brumer
core   +1 more source

Chaos and Quantum Mechanics [PDF]

open access: yesAnnals of the New York Academy of Sciences, 2005
Abstract:The relationship between chaos and quantum mechanics has been somewhat uneasy—even stormy, in the minds of some people. However, much of the confusion may stem from inappropriate comparisons using formal analyses. In contrast, our starting point here is that a complete dynamical description requires a full understanding of the evolution ...
Habib, Salman   +5 more
openaire   +3 more sources

Scrambling‐Enhanced Quantum Battery Charging in Black Hole Analogues

open access: yesAdvanced Science, EarlyView.
By employing a black‐hole‐analog quantum battery constructed from a position‐dependent XY model, its dynamical behavior is investigated through a quench of the scrambling parameter. It is systematically quantified that how the simulated scrambling improves key performance metrics‐namely, stored energy, peak power, and charging time‐thereby offering a ...
Zhilong Liu   +3 more
wiley   +1 more source

Entanglement production in Quantized Chaotic Systems

open access: yes, 2005
Quantum chaos is a subject whose major goal is to identify and to investigate different quantum signatures of classical chaos. Here we study entanglement production in coupled chaotic systems as a possible quantum indicator of classical chaos.
A J Scott   +30 more
core   +1 more source

Vapor‐Assisted Catalysis Enables Precise Construction of MOF‐Derived Hierarchical Carbon Nanoarrays for High‐Performance Supercapacitors

open access: yesAdvanced Science, EarlyView.
A remote‐control strategy for catalyst design is unveiled for advanced carbon materials. During pyrolysis, zinc vapor from a physically separate source guides cobalt catalysts to construct a hierarchical carbon nanoarray. This approach prevents structural collapse while directing the dense growth of carbon nanotubes, yielding a material with ...
Xiaoyang Deng   +7 more
wiley   +1 more source

Characterizing the dynamical phase diagram of the Dicke model via classical and quantum probes

open access: yesPhysical Review Research, 2021
We theoretically study the dynamical phase diagram of the Dicke model in both classical and quantum limits using large, experimentally relevant system sizes.
R. J. Lewis-Swan   +4 more
doaj   +1 more source

Quantum image encryption algorithm based on four-dimensional chaos

open access: yesFrontiers of Physics
Background: Quantum image processing is rapidly developing in the field of quantum computing, and it can be successfully implemented on the Noisy Intermediate-Scale Quantum (NISQ) device.
Xiao-Dong Liu   +6 more
semanticscholar   +1 more source

Designing Memristive Materials for Artificial Dynamic Intelligence

open access: yesAdvanced Intelligent Discovery, EarlyView.
Key characteristics required of memristors for realizing next‐generation computing, along with modeling approaches employed to analyze their underlying mechanisms. These modeling techniques span from the atomic scale to the array scale and cover temporal scales ranging from picoseconds to microseconds. Hardware architectures inspired by neural networks
Youngmin Kim, Ho Won Jang
wiley   +1 more source

Quantum Lyapunov spectrum

open access: yesJournal of High Energy Physics, 2019
We introduce a simple quantum generalization of the spectrum of classical Lyapunov exponents. We apply it to the SYK and XXZ models, and study the Lyapunov growth and entropy production.
Hrant Gharibyan   +3 more
doaj   +1 more source

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