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In this paper we investigate the close relationship between Dicke superradiance, originally predicted for an ensemble of two-level atoms in entangled states, and the Hanbury Brown and Twiss effect, initially established in astronomy to…

Quantum Physics · Physics 2016-07-07 D. Bhatti , S. Oppel , R. Wiegner , G. S. Agarwal , J. von Zanthier

We explore the formation of Dicke states. A system consisting of two two-level atoms located in the right Rindler wedge, has investigated to determine the conditions under which the superradiant or subradiant state can be formed. The…

Collective emission behavior is usually described by the decay dynamics of the completely symmetric Dicke states. To study a more realistic scenario, we investigate alternative initial states inducing a more complex time evolution.…

Quantum Physics · Physics 2021-04-21 Sebastian Fuchs , András Vukics , Stefan Yoshi Buhmann

Superradiance, i.e., spontaneous emission of coherent radiation by an ensemble of identical two-level atoms in collective states introduced by Dicke in 1954, is one of the enigmatic problems of quantum optics. The startling gist is that…

Quantum Physics · Physics 2016-02-02 Daniel Bhatti , Joachim von Zanthier , Girish S. Agarwal

Studies 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. This can be achieved by finding the eigenvalues $N$…

Quantum Physics · Physics 2025-07-22 Nicola Piovella

In inverted atomic ensembles, photon-mediated interactions give rise to Dicke superradiance, a form of many-body decay that results in a rapid release of energy as a photon burst. While originally studied in pointlike ensembles, this…

Quantum Physics · Physics 2024-03-20 Stuart J. Masson , Jacob P. Covey , Sebastian Will , Ana Asenjo-Garcia

The collective behavior of ensembles of atoms has been studied in-depth since the seminal paper of Dicke [R. H. Dicke, Phys. Rev. 93, 99 (1954)], where he demonstrated that a group of emitters in collective states is able to radiate with…

Quantum Physics · Physics 2017-07-06 M. -O. Pleinert , J. von Zanthier , G. S. Agarwal

We calculate the radiative characteristics of emission from a system of entangled atoms which can have a relative distance larger than the emission wavelength. We develop a quantum multipath interference approach which explains both super-…

Quantum Physics · Physics 2015-03-19 R. Wiegner , J. von Zanthier , G. S. Agarwal

We present a proposal for a probing scheme utilizing Dicke superradiance to obtain information about ultracold atoms in optical lattices. A probe photon is absorbed collectively by an ensemble of lattice atoms generating a Dicke state. The…

Quantum Physics · Physics 2016-07-01 Nicolai ten Brinke , Ralf Schützhold

Dicke superradiance, i.e., the enhanced spontaneous emission of coherent radiation, is often attributed to radiation emitted by synchronized dipoles coherently oscillating in phase. At the same time, Dicke derived superradiance assuming…

Quantum Physics · Physics 2021-11-10 D. Bhatti , M. Bojer , J. von Zanthier

An individual excited two level system decays to its ground state by emitting a single photon in a process known as spontaneous emission. In accordance with quantum theory the probability of detecting the emitted photon decreases…

Quantum Physics · Physics 2014-12-09 J. A. Mlynek , A. A. Abdumalikov , C. Eichler , A. Wallraff

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. The quantum aspects of this phenomenon are highlighted when…

Fully-excited two-level atoms separated by less than the transition wavelength cooperatively emit light in a short burst, a phenomenon called superradiance by R. Dicke in 1954. The burst is characterized by a maximum intensity scaling with…

Quantum Physics · Physics 2022-06-30 M. Bojer , J. von Zanthier

Superradiance, in which the collective behavior of emitters can generate enhanced radiative decay, was first predicted by a model, now known as the Dicke model, that contains a collection of two-level systems (the emitters) all interacting…

Optics · Physics 2025-02-05 Xuecheng Tao , John P. Philbin , Prineha Narang

The Dicke model describes the collective behavior of a sub-wavelength--size ensemble of two-level atoms (i.e., spin-1/2) interacting identically with a single quantized radiation field of a cavity. Across a critical coupling strength it…

Quantum Physics · Physics 2024-03-01 Farokh Mivehvar

We investigate Dicke subradiance of distant quantum sources in free space, i.e., the spatial emission pattern of spontaneously radiating non-interacting multi-level atoms or multi-photon sources, prepared in totally antisymmetric states. We…

Quantum Physics · Physics 2018-03-20 Daniel Bhatti , Raimund Schneider , Steffen Oppel , Joachim von Zanthier

We study the quantum statistics of single-mode radiation emitted by an atomic ensemble when the ensemble is initially prepared in a superradiant Dicke state. We show that while the radiation is well approximated by the Glauber coherent…

Quantum Physics · Physics 2025-08-14 A. Yadav , D. D. Yavuz

Dicke superradiance by an ensemble of quantum emitters produces a collective burst of radiation, but no entanglement in the mixed state of the emitters. We show that adding a local kinetic constraint between the emitters generates extensive…

Quantum Physics · Physics 2026-05-18 Lucas Winter , Jan Kumlin , Thomas Pohl , Andreas Nunnenkamp

We study a simple model describing superradiance in a system of two-level atoms interacting with a single-mode bosonic field. The model permits a continuous crossover between integrable and partially chaotic regimes and shows a complex…

Quantum Physics · Physics 2017-06-07 Michal Kloc , Pavel Stransky , Pavel Cejnar

Here we present an approach to the problem of superradiance in dense atomic samples, when dipolar interactions arise between atoms. Our treatment consists of the sequential use of the Holstein-Primakoff and mean-field approximations, from…

Quantum Physics · Physics 2025-11-25 I. M. de Araújo , H. Sanchez , L. F. Alves da Silva , M. H. Y. Moussa
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