Related papers: Beyond Dicke superradiance: Universal scaling of the peak emission rate

Beyond Dicke superradiance: Universal scaling of the peak emission rate

URL: http://arxiv.org/abs/2506.12649v1
Date: Sat, 14 Jun 2025 22:32:46 GMT
Title: Beyond Dicke superradiance: Universal scaling of the peak emission rate
Authors: Raphael Holzinger, Susanne F. Yelin,
Abstract summary: In quantum optics, superradiance is a phenomenon in which a system of $N$ fully excited quantum emitters radiate intense flashes of light during collective decay.<n>We present an analytically compact and easily computable formula for the peak photon emission rate of fully excited quantum emitter systems undergoing superradiant decay.
Score: 0.0
License: http://creativecommons.org/licenses/by/4.0/
Abstract: In quantum optics, superradiance is a phenomenon in which a system of $N$ fully excited quantum emitters radiate intense flashes of light during collective decay. However, computing its peak intensity for many spatially separated emitters remained challenging due to the exponential growth of the underlying Hilbert space with system size $N$. Derived from exact numerics, we present an analytically compact and easily computable formula for the peak photon emission rate of fully excited quantum emitter systems undergoing superradiant decay. The result applies to emitter configurations in any geometry and reveals a universal behavior: spatially extended quantum systems have a geometry-dependent optimal emitter number and always reach a peak photon emission rate that increases only linearly with $N$. Our results encompass quantum systems ranging from cold atomic gases and neutral-atom arrays to molecular aggregates and solid-state materials.

Related papers

Collective Superradiance: Estimating the Peak Emission Rate and Time [0.0]
We present compact, analytic formulas for evaluating the peak emission rate and time for initially fully excited quantum emitter ensembles.<n>These formulas rely solely on the variance of the eigenvalues of a real symmetric $N times N$ matrix.<n>We demonstrate the versatility of these results across various environments, including free space, solid-state, and waveguide reservoirs.
arXiv Detail & Related papers (2025-04-14T08:51:42Z)
Cavity-Quantum Electrodynamics with Moiré Flatband Photonic Crystals [35.119260614523256]
A quantum dot can be tuned by a factor of 40, ranging from 42 ps to 1692 ps, which is attributed to strong Purcell enhancement and Purcell inhibition effects.<n>Our findings pave the way for moir'e flatband cavity-enhanced quantum light sources, quantum optical switches, and quantum nodes for quantum internet applications.
arXiv Detail & Related papers (2024-11-25T18:52:11Z)
Site-Controlled Purcell-Induced Bright Single Photon Emitters in Hexagonal Boron Nitride [62.170141783047974]
Single photon emitters hosted in hexagonal boron nitride (hBN) are essential building blocks for quantum photonic technologies that operate at room temperature. We experimentally demonstrate large-area arrays of plasmonic nanoresonators for Purcell-induced site-controlled SPEs. Our results offer arrays of bright, heterogeneously integrated quantum light sources, paving the way for robust and scalable quantum information systems.
arXiv Detail & Related papers (2024-05-03T23:02:30Z)
$N$ Scaling of Large-Sample Collective Decay in Inhomogeneous Ensembles [44.99833362998488]
We experimentally study collective decay of an extended disordered ensemble of $N$ atoms inside a hollow-core fiber. We observe up to $300$-fold enhanced decay rates, strong optical bursts and a coherent ringing.
arXiv Detail & Related papers (2023-07-21T14:43:29Z)
Dark-state induced trapping law in single-photon emission from multiple quantum emitters [1.0723935272906462]
We study the single-photon collective dynamics in a waveguide system consisting of the photon channel with a finite bandwidth and an ensemble of quantum emitters. Our findings lead to the prediction that single-photon collective emissions can be strongly suppressed if the number of excited emitters is much less than the total number of emitters in the system.
arXiv Detail & Related papers (2023-06-19T03:06:09Z)
Coherent super- and subradiant dynamics between distant optical quantum emitters [5.240984067778683]
Single emitter radiation can be tailored by the photonic environment. Multiple emitters fundamentally extends this picture following a "more is different" dictum. Subradiant states are particularly challenging to realize being highly sensitive to imperfections and decoherence.
arXiv Detail & Related papers (2022-10-05T17:59:06Z)
Quantum density matrix theory for a laser without adiabatic elimination of the population inversion: transition to lasing in the class-B limit [62.997667081978825]
No class-B quantum density-matrix model is available to date, capable of accurately describing coherence and photon correlations within a unified theory. Here we carry out a density-matrix theoretical approach for generic class-B lasers, and provide closed equations for the photonic and atomic reduced density matrix in the Fock basis of photons. This model enables the study of few-photon bifurcations and non-classical photon correlations in class-B laser devices, also leveraging quantum descriptions of coherently coupled nanolaser arrays.
arXiv Detail & Related papers (2022-05-26T16:33:51Z)
Correlated steady states and Raman lasing in continuously pumped and probed atomic ensembles [68.8204255655161]
We consider an ensemble of Alkali atoms that are continuously optically pumped and probed. Due to the collective scattering of photons at large optical depth, the steady state of atoms does not correspond to an uncorrelated tensor-product state. We find and characterize regimes of Raman lasing, akin to the model of a superradiant laser.
arXiv Detail & Related papers (2022-05-10T06:54:54Z)
Phonon dephasing and spectral diffusion of quantum emitters in hexagonal Boron Nitride [52.915502553459724]
Quantum emitters in hexagonal boron nitride (hBN) are emerging as bright and robust sources of single photons for applications in quantum optics. We study phonon dephasing and spectral diffusion of quantum emitters in hBN via resonant excitation spectroscopy at cryogenic temperatures.
arXiv Detail & Related papers (2021-05-25T05:56:18Z)
Hybrid quantum photonics based on artificial atoms placed inside one hole of a photonic crystal cavity [47.187609203210705]
Hybrid quantum photonics with SiV$-$-containing nanodiamonds inside one hole of a one-dimensional, free-standing, Si$_3$N$_4$-based photonic crystal cavity is presented. The resulting photon flux is increased by more than a factor of 14 as compared to free-space. Results mark an important step to realize quantum network nodes based on hybrid quantum photonics with SiV$-$- center in nanodiamonds.
arXiv Detail & Related papers (2020-12-21T17:22:25Z)
Position-controlled quantum emitters with reproducible emission wavelength in hexagonal boron nitride [45.39825093917047]
Single photon emitters (SPEs) in low-dimensional layered materials have recently gained a large interest owing to the auspicious perspectives of integration and extreme miniaturization. Here, we evidence SPEs in high purity synthetic hexagonal boron nitride (hBN) that can be activated by an electron beam at chosen locations. Our findings constitute an essential step towards the realization of top-down integrated devices based on identical quantum emitters in 2D materials.
arXiv Detail & Related papers (2020-11-24T17:20:19Z)
Quantum coherence and speed limit in the mean-field Dicke model of superradiance [0.0]
We discuss the quantifying of quantum coherence for the Dicke model of superradiance in the mean-field approximation. We find the single-atom $l_1$-norm of coherence is given by the square root of the normalized average intensity of radiation emitted by the superradiant system.
arXiv Detail & Related papers (2020-07-06T16:35:53Z)

This list is automatically generated from the titles and abstracts of the papers in this site.