Results 161 to 170 of about 74,838 (223)

Phonon‐Induced Markovian and Non‐Markovian Effects on Absorption Spectra of Moiré Excitons in Twisted Transition Metal Dichalcogenide Bilayers

Advanced Quantum Technologies, Volume 9, Issue 4, April 2026.
The twist angle dependence of phonon‐assisted optical absorption by moiré excitons in TMDC bilayers is studied based on a time convolutionless master equation. Small angles yield phonon‐induced absorption properties known from quantum dots or color centers reflecting non‐Markovian features, while larger angles produce absorption spectra similar to ...
Daniel Groll, Anton Plonka, Kevin Jürgens, Daniel Wigger, Tilmann Kuhn   +4 more
wiley   +1 more source

Double BFV Quantisation of 3D Gravity. [PDF]

Commun Math Phys
Canepa G, Schiavina M.
europepmc   +1 more source

Non‐Markovian Exceptional Points in Waveguide Quantum Electrodynamics

Advanced Quantum Technologies, Volume 9, Issue 4, April 2026.
Non‐Markovian waveguide‐QED systems exhibit dynamical transitions governed by exceptional points arising from retardation and interference. Giant atoms and spatially separated emitters display oscillatory relaxation and real zeros in the excited‐state amplitude at critical delay times.
Stefano Longhi
wiley   +1 more source

Quantum discord and entanglement in radiative capture reactions. [PDF]

Sci Rep
Sadeghi H, Mirzaee M.
europepmc   +1 more source

Imprint of the Quasi‐Biennial Oscillation on the Ionosphere and Thermosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The Quasi‐Biennial Oscillation (QBO) is a dominant mode of stratospheric variability and is known to modulate the variability of the ionosphere‐thermosphere (IT) system. However, the extent of its influence on the ionosphere‐thermosphere system remains uncertain due to weak signals and confounding with similar periodicities in solar flux.
D. Singh, L. P. Goncharenko, S. R. Zhang
wiley   +1 more source

A Vibronic Coupling Model to Study the Nonadiabatic Dynamics of Polyenes. [PDF]

J Phys Chem A
Georges TN, Summerley L, Runeson JE, Barford W.   +3 more
europepmc   +1 more source

Measurement of Phase Velocity and Ellipticity of Multi‐Mode Surface Waves by Beamforming Multi‐Component Ambient Seismic Noise

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Conventional beamforming of multi‐component ambient seismic noise typically utilizes only the vertical‐vertical (ZZ) component to extract Rayleigh wave dispersion curves or the transverse‐transverse (TT) component for Love waves. In this study, we extend weighted and modified beamforming to cross‐correlation functions between different ...
Tongwei Qin, Youyuan Zhang, Shanshan Jia, Laiyu Lu   +3 more
wiley   +1 more source

Nonlinear SPDEs and Maximal Regularity: An Extended Survey. [PDF]

Nonlinear Differ Equ Appl
Agresti A, Veraar M.
europepmc   +1 more source

Non‐Relativistic Limit of Dirac Hamiltonians With Aharonov–Bohm Fields

Studies in Applied Mathematics, Volume 156, Issue 4, April 2026.
ABSTRACT We characterize the families of self‐adjoint Dirac and Schrödinger operators with Aharonov–Bohm magnetic field, and we exploit the non‐relativistic limit of infinite light speed to connect the former to the latter. The limit consists of the customary removal of the rest energy and of a suitable scaling, with the light speed, of the short‐scale
Matteo Gallone, Alessandro Michelangeli, Diego Noja   +2 more
wiley   +1 more source

Characterization of the spectra of rotating truncated gas planets and inertia-gravity modes. [PDF]

Z Angew Math Phys
de Hoop MV, Holman S.
europepmc   +1 more source