Results 131 to 140 of about 166,448 (322)

A Perspective on Interactive Theorem Provers in Physics

open access: yesAdvanced Science, EarlyView.
Into an interactive theorem provers (ITPs), one can write mathematical definitions, theorems and proofs, and the correctness of those results is automatically checked. This perspective goes over the best usage of ITPs within physics and motivates the open‐source community run project PhysLean, the aim of which is to be a library for digitalized physics
Joseph Tooby‐Smith
wiley   +1 more source

The Fourier Transform on Quantum Euclidean Space

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
We study Fourier theory on quantum Euclidean space. A modified version of the general definition of the Fourier transform on a quantum space is used and its inverse is constructed.
Kevin Coulembier
doaj   +1 more source

Quantum Dynamics of a Few-Photon Parametric Oscillator

open access: yesPhysical Review X, 2019
Modulating the frequency of a harmonic oscillator at nearly twice its natural frequency leads to amplification and self-oscillation. Above the oscillation threshold and in the presence of a nonlinearity, the field settles into a coherent oscillating ...
Zhaoyou Wang   +6 more
doaj   +1 more source

A quantum heat machine from fast optomechanics

open access: yesNew Journal of Physics, 2020
We consider a thermodynamic machine in which the working fluid is a quantized harmonic oscillator that is controlled on timescales that are much faster than the oscillator period.
James S Bennett   +3 more
doaj   +1 more source

Piezofluorochromism in Aramid Dyads: Pressure‐Triggered Luminescence Enhancement with Predictable Emission Shifts

open access: yesAdvanced Science, EarlyView.
High‐pressure investigations uncover the structural determinants of luminescence intensity and shifts in aramids, establishing intrinsic intramolecular rotation as a reliable predictor of their piezofluorochromic behavior. Leveraging this insight, conjugation modulation is proposed as a precise strategy to tune their piezofluorochromic properties ...
Yayun Wang   +10 more
wiley   +1 more source

d-Dimensional generalization of the point canonical transformation for a quantum particle with position-dependent mass

open access: yes, 2006
The d-dimensional generalization of the point canonical transformation for a quantum particle endowed with a position-dependent mass in Schrodinger equation is described. Illustrative examples including; the harmonic oscillator, Coulomb, spiked harmonic,
Bagchi B   +26 more
core   +1 more source

Impact of Trap Depth on the Steady‐State and Transient Photoluminescence in Halide Perovskite Films

open access: yesAdvanced Energy Materials, EarlyView.
The presence of shallow traps in halide perovskites is frequently postulated by density functional theory calculations. This review studies the implications of recombination‐active shallow traps on steady‐state and transient recombination kinetics. How to identify shallow traps and how the depth of the traps and their density are reflected in different
Jürgen Hüpkes   +2 more
wiley   +1 more source

Ermakov-Lewis symmetry in photonic lattices

open access: yes, 2014
We present a class of waveguide arrays that is the classical analog of a quantum harmonic oscillator where the mass and frequency depend on the propagation distance.
Aleahmad, P.   +3 more
core   +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

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