Results 11 to 20 of about 3,793 (206)

Superradiance and Broadband Emission Driving Fast Electron Dephasing in Open Quantum Systems [PDF]

Advanced Science, Volume 13, Issue 27, 13 May 2026.
We uncover the physical origin of ultrafast electron dephasing in solid‐state high‐harmonic generation by simulating the Lindblad equation for the dissipative Hubbard model. Coexistence of Dicke superradiance and broadband emission is revealed, whose destructive interference shortens the effective scattering time and provides a unified picture of ...
Gimin Bae, Youngjae Kim, Jae Dong Lee
wiley   +2 more sources

Superradiance transition in graphene [PDF]

Physics Letters A, 2015
We study theoretically and numerically the conditions required for the appearance of a superradiance transition in graphene. The electron properties of graphene are described in the single $p_z$-orbital tight-binding approximation, in which the model is reduced to the effective two-level pseudo-spin $1/2$ system.
Alexander I. Nesterov, Fermín Aceves de la Cruz, Valeriy A. Luchnikov, Gennady P. Berman   +3 more
openaire   +3 more sources

Boson star superradiance [PDF]

Science China Physics, Mechanics & Astronomy
AbstractRecently, it has been realized that in some systems internal space rotation can induce energy amplification for scattered waves, similar to rotation in real space. In particularly, it has been shown that energy extraction is possible for a Q-ball, a stationary non-topological soliton that is coherently rotating in its field space. In this paper,
Gao, He-Yu, Saffin, Paul M., Wang, Yi-Jie, Xie, Qi-Xin, Zhou, Shuang-Yong   +4 more
openaire   +3 more sources

Theory of dynamical superradiance in organic materials [PDF]

Nanophotonics
We develop the theory of dynamical superradiance – the collective exchange of energy between an ensemble of initially excited emitters and a single-mode cavity – for organic materials where electronic states are coupled to vibrational modes.
Freter Lukas, Fowler-Wright Piper, Cuerda Javier, Lovett Brendon W., Keeling Jonathan, Törmä Päivi   +5 more
doaj   +2 more sources

Engineering and Tuning of High Quality Hexagonal Boron Nitride Nanophotonic Resonators [PDF]

Small, Volume 22, Issue 47, 21 August 2026.
The manuscript explores nanofabrication protocols for photonic crystal cavities and microdisk resonators from hexagonal boron nitride. High Q cavities are fabricated and their resonances are controllably tuned. The work is important for future realization of quantum technologies with hexagonal boron nitride.
Otto Cranwell Schaeper, Angus Gale, Nathan Coste, Dominic Scognamiglio, Jonathan Horder, Hugo Quard, Igor Aharonovich   +6 more
wiley   +2 more sources

The density effect on superradiance detected by the field suppression of superradiance [PDF]

Canadian Journal of Physics, 2019
In this article, the density effect on superradiance is investigated through the field suppression of superradiance. It is shown that increasing density, which increases the number of atoms and leads to a greater macroscopic dipole, causes line broadening.
Han, Jianing, Maeda, H.
openaire   +3 more sources

Single photon superradiance enhanced light–matter interaction in spatially ordered shape and volume controlled single quantum dots: enabling on-chip photonic networks [PDF]

Nanophotonics
On-chip photonic networks require adequately spatially ordered matter-photon interconversion qubit sources with emission figures-of-merit exceeding the requirements that would enable the desired functional response of the network.
Jordao Lucas, Chattaraj Swarnabha, Huang Qi, Lu Siyuan, Zhang Jiefei, Madhukar Anupam   +5 more
doaj   +2 more sources

Random Lasers as Social Processes Simulators [PDF]

Entropy, 2023
In this work, we suggest a quantum-like simulator concept to study social processes related to the solution of NP-hard problems. The simulator is based on the solaser model recently proposed by us in the framework of information cascade growth and echo ...
Alexander Alodjants, Peter Zacharenko, Dmitry Tsarev, Anna Avdyushina, Mariya Nikitina, Andrey Khrennikov, Alexander Boukhanovsky   +6 more
doaj   +2 more sources

Axion superradiance [PDF]

Proceedings of 3rd General Meeting of the COST Action COSMIC WISPers (CA21106) - 3rd Training School of the COST Action COSMIC WISPers (CA21106) — PoS(COSMICWISPers2025)
Contribution to the proceedings of the 3rd General Meeting of the COST Action COSMIC ...
Chadha-Day, Francesca
openaire   +3 more sources

Generation, amplification, and nonlinear self-compression of powerful superradiance pulses [PDF]

, 2012
Superradiance (SR) of electron bunches can be considered an effective method of production of ultrashort electromagnetic pulses. Different types of SR associated with different mechanisms (cyclotron, Cherenkov, and bremsstrahlung) of stimulated emission ...
Phelps, A.D.R., Rostov VV, I. V. Zotova, Phelps ADR, Zotova IV, V. V. Rostov, Ginzburg NS, N. S. Ginzburg, M. I. Yalandin, Yalandin MI, Yalandin, M.I., Rostov, V.V., Cross, A.W., A. W. Cross, Ginzburg, N.S., Zotova, I.V., Cross AW, A. D. R. Phelps, Vladislav V. Rostov, Michael I. Yalandin, Adrian W. Cross, Irina V. Zotova, Naum S. Ginzburg, Alan D. R. Phelps   +23 more
core   +4 more sources