Results 11 to 20 of about 2,656 (211)
Superradiance, 2015 Superradiance is a radiation enhancement process that involves dissipative systems. With a 60 year-old history, superradiance has played a prominent role in optics, quantum mechanics and especially in relativity and astrophysics.
PANI, PAOLO +2 more
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Science China Physics, Mechanics & AstronomyRecently, it has been realized that in some systems internal space rotation can induce energy amplification for scattered waves, similar to rotation in real space.
Gao, He-Yu +4 more
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Superradiance transition in graphene [PDF]
Physics Letters A, 2015 International audienceAbstract We study theoretically 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 ...
Nesterov, Alexander +3 more
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Advances in Molecular Relaxation Processes, 1976 This review deals with experimental and theoretical aspects of acoustic superradiance, and also spontaneous coherent radiation of elastic multipoles. B.
Nagibarov V. +3 more
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Superradiance and Broadband Emission Driving Fast Electron Dephasing in Open Quantum Systems. [PDF]
Adv Sci (Weinh)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 ...
Bae G, Kim Y, Lee JD.
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Superradiance or total reflection? [PDF]
, 2012 Numerical evolution of massless scalar fields on Kerr background is studied. The initial data specifications are chosen to have compact support separated from the ergoregion and to yield nearly monochromatic incident wave packets.
Rácz, István, László, András
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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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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
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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
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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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