Results 1 to 10 of about 356 (115)
Dicke Superradiance in Ordered Lattices: Dimensionality Matters
Physical 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.
Ana Asenjo-Garcia +2 more
exaly +2 more sources
Periodic superradiance in an Er:YSO crystal
Physical Review ResearchWe 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
Yasutaka Imai +2 more
exaly +2 more sources
Observation of blackbody radiation enhanced superradiance in ultracold Rydberg gases
New 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 +1 more source
Nanomaterials, 2022 Superradiance was demonstrated in broken-symmetry arrays of SiV diamond color centers embedded into concave plasmonic nanoresonators. The coupled configurations, including the diamond-silver (bare) and diamond-silver-diamond (coated) nanoresonators ...
Dávid Vass +3 more
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Shielding of Penrose superradiance in optical black holes
European 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
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Enhanced robustness and dimensional crossover of superradiance in cuboidal nanocrystal superlattices
Physical Review Research, 2023 Cooperative emission of coherent radiation from multiple emitters (known as superradiance) has been predicted and observed in various physical systems, most recently in CsPbBr_{3} nanocrystal superlattices. Superradiant emission is coherent and occurs on
Sushrut Ghonge +5 more
doaj +1 more source
Superradiance in string theory [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 Abstract We perform an extensive analysis of the statistics of axion masses and interactions in compactifications of type IIB string theory, and we show that black hole superradiance excludes some regions of Calabi-Yau moduli space. Regardless of the cosmological model, a theory with an axion whose mass falls in a superradiant band can ...
Mehta, Viraf M. +5 more
openaire +4 more sources
Separating the superradiant emission from the Hawking radiation from a rotating black hole
Physics Letters B, 2023 Emission of particles created in the background of a rotating black hole can be greatly amplified taking away rotational energy of a black hole. This amplification affects both particles created near the horizon (due to the Hawing effect), and particles ...
De-Chang Dai, Dejan Stojkovic
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Exact Markovian and non-Markovian time dynamics in waveguide QED: collective interactions, bound states in continuum, superradiance and subradiance [PDF]
Quantum, 2019 We develop a formalism for modelling $exact$ time dynamics in waveguide quantum electrodynamics (QED) using the real-space approach. The formalism does not assume any specific configuration of emitters and allows the study of Markovian dynamics $\textit ...
Fatih Dinc +2 more
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Superradiant and stimulated-superradiant emission of bunched electron beams [PDF]
Reviews of Modern Physics, 2019 109 pages, 34 ...
Gover, Avraham +6 more
openaire +2 more sources