Results 91 to 100 of about 2,656 (211)
Subradiance Generation in a Chain of Two-Level Atoms with a Single Excitation
AtomsStudies of subradiance in a chain N two-level atoms in the single excitation regime focused mainly on the complex spectrum of the effective Hamiltonian, identifying subradiant eigenvalues.
Nicola Piovella
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Light bosonic fields may suffer an instability around a rotating compact object. This process, known as superradiance, leads to the exponential amplification of the field around a black hole or neutron star, while the spin of the central object is ...
Chadha-Day, Francesca
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Experimental Fock-State Superradiance
, 2017 Superradiance in an ensemble of atoms leads to the collective enhancement of radiation in a particular mode shared by the atoms in their spontaneous decay from an excited state.
D. F. Barros (17494800) +8 more
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Laser &Photonics Reviews, Volume 20, Issue 2, 22 January 2026.The monolayer J‐aggregate PTCDI‐C13, grown on thin hBN, is transferred to an all‐dielectric metasurface to achieve strong coupling between optical modes (GMRs and qBICs) and Frenkel excitons. With low losses in both microcavities and excitons, a Rabi splitting of 78 meV is observed in both reflectance and photoluminescence k‐space maps, enabling ...
Xinyi Zhao +5 more
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Spin wave amplification through superradiance
, 2023 Superradiance is a phenomenon of multiple facets that occurs in classical and quantum physics under extreme conditions. Here we present its manifestation in spin waves under an easily realized condition.
Wang, X. R., Gong, X., Jing, K. Y.
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Advances in Astronomy, Volume 2026, Issue 1, 2026.We examine the weak cosmic censorship conjecture (WCCC) violation by throwing a charged and rotating test particle into a Kerr–Newman–modified gravity black hole (KN–MOG BH). The result depends on several factors, such as the relative sign of the particle’s charge and its direction of rotation with respect to black hole (BH).
Waqar Ahmad +2 more
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Models for Equilibrium BEC Superradiance
, 2004 9 pagesMotivated by recent experiments with superradiant Bose-Einstein Condensate (BEC) we consider simple microscopic models describing rigorously the interference of the two cooperative phenomena, BEC and radiation, in thermodynamic equilibrium.
Zagrebnov, Valentin A. +3 more
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Journal of High Energy PhysicsRotating primordial black holes (PBHs) in the early universe can emit particles through superradiance, a process particularly efficient when the particle’s Compton wavelength is comparable to the PBH’s gravitational radius.
Nayun Jia +4 more
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The density effect on superradiance detected by the field suppression of superradiance
, 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 ...
Maeda, H., Han, Jianing
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