Primordial black hole superradiance and evaporation in the string axiverse [PDF]
Journal of High Energy Physics, 2023 In the string axiverse scenario, light primordial black holes may spin up due to the Hawking emission of a large number of light (sub-MeV) axions. We show that this may trigger superradiant instabilities associated with a heavier axion during the black ...
Marco Calzà, J. G. Rosa, Filipe Serrano
semanticscholar +1 more source
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
Squeezing Multilevel Atoms in Dark States via Cavity Superradiance. [PDF]
Physical Review Letters, 2023 We describe a method to create and store scalable and long-lived entangled spin-squeezed states within a manifold of many-body cavity dark states using collective emission of light from multilevel atoms inside an optical cavity.
Bhuvanesh Sundar +3 more
semanticscholar +1 more source
Modulating binary dynamics via the termination of black hole superradiance [PDF]
Physical Review D, 2023 A superradiant cloud of ultralight bosons near a rotating black hole provides a smoking gun for particle physics in the infrared. However, tidal perturbations from a nearby binary companion can destabilise the boson cloud and even terminate superradiance.
Kaiyuan Fan +3 more
semanticscholar +1 more source
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
doaj +1 more source
Localization Driven Superradiant Instability [PDF]
Physical Review Letters, 2020 The prominent Dicke superradiant phase arises from coupling an ensemble of atoms to cavity optical field when external optical pumping exceeds a threshold strength. Here we report a prediction of the superrandiant instability driven by Anderson localization, realized with a hybrid system of Dicke and Aubry-Andre (DAA) model for bosons trapped in a one ...
Honghao Yin +5 more
openaire +3 more sources
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.
Eric Sierra +2 more
doaj +1 more source
Breakdown of steady-state superradiance in extended driven atomic arrays [PDF]
Physical Review Research, 2023 Recent advances in generating well controlled dense arrangements of individual atoms in free space have generated interest in understanding how the extended nature of these systems influences superradiance phenomena. Here, we provide an in-depth analysis
S. Ostermann +3 more
semanticscholar +1 more source
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
doaj +1 more source
Trapped Atoms and Superradiance on an Integrated Nanophotonic Microring Circuit [PDF]
Physical Review X, 2023 Interfacing cold atoms with integrated nanophotonic devices could offer new paradigms for engineering atom-light interactions and provide a potentially scalable route for quantum sensing, metrology, and quantum information processing. However, it remains
Xinchao Zhou +3 more
semanticscholar +1 more source