Results 1 to 10 of about 2,656 (211)

Periodic superradiance in an Er:YSO crystal [PDF]

open access: yesPhysical Review Research
We observed periodic optical pulses from an Er:YSO crystal during irradiating with a continuous-wave excitation laser. We refer to this phenomenon as “periodic superradiance.” This periodicity can be understood qualitatively by a simple model, in which a
Hideaki Hara   +2 more
exaly   +4 more sources

Dicke Superradiance in Ordered Lattices: Dimensionality Matters

open access: yesPhysical Review Research, 2022
Dicke superradiance in ordered atomic arrays is a phenomenon where atomic synchronization gives rise to a burst in photon emission. This superradiant burst only occurs if there is one—or just a few—dominant decay channels.
Eric Sierra   +2 more
exaly   +4 more sources

Theory of dynamical superradiance in organic materials [PDF]

open access: yesNanophotonics
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   +5 more
doaj   +3 more sources

Q -Ball Superradiance

open access: yesPhysical Review Letters, 2023
Q-balls are nontopological solitons that coherently rotate in field space. We show that these coherent rotations can induce superradiance for scattering waves, thanks to the fact that the scattering involves two coupled modes. Despite the conservation of
Paul M Saffin, Shuang-Yong Zhou
exaly   +3 more sources

Shielding of Penrose superradiance in optical black holes

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We investigate the effect of superradiance shielding for the analogue rotating black holes simulated by optical vortices by calculating the radial motion of massless particles in such spacetime background.
Hongbin Zhang, Baocheng Zhang
doaj   +2 more sources

Observation of blackbody radiation enhanced superradiance in ultracold Rydberg gases

open access: yesNew Journal of Physics, 2021
An ensemble of excited atoms can synchronize emission of light collectively in a process known as superradiance when its characteristic size is smaller than the wavelength of emitted photons.
Liping Hao   +8 more
doaj   +2 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]

open access: yesNanophotonics
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   +5 more
doaj   +2 more sources

Random Lasers as Social Processes Simulators [PDF]

open access: yesEntropy, 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   +6 more
doaj   +2 more sources

The future of quantum technologies: superfluorescence from solution-processed, tunable materials [PDF]

open access: yesNanophotonics
One of the most significant and surprising recent developments in nanocrystal studies was the observation of superfluorescence from a system of self-assembled, colloidal perovskite nanocrystals [G. Rainò, M. A. Becker, M. I. Bodnarchuk, R. F. Mahrt, M. V.
Russ Brendan, Eisler Carissa N.
doaj   +2 more sources

Enhancing cooperativity of molecular J-aggregates by resonantly coupled dielectric metasurfaces [PDF]

open access: yesNanophotonics
J-aggregates are supramolecular assemblies of dyes exhibiting strong absorption and fluorescence with narrow linewidths, as well as large optical nonlinearities, induced by the formation of largely delocalized molecular excitons.
Marangi Marco   +6 more
doaj   +2 more sources

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