Predicting correlations in superradiant emission from a cascaded quantum system

Abstract

In recent experiments, a novel type of cascaded quantum system has been realized using nanofiber-coupled cold atomic ensembles. This setup has enabled the study of superradiant decay of highly excited collective spin states of up to a thousand atoms, featuring unidirectional coupling mediated by the waveguide mode. The complexity arising from the large, multi-excited ensemble and the cascaded interactions between atoms makes conventional simulation methods unsuitable for predicting the correlations of superradiant emission beyond the first order. To address this challenge, we developed a new simulation technique based on the truncated Wigner approximation for spins. Our stochastic simulation tool can predict the second-order quantum coherence function, $g^{(2)}$, along with other correlators of the light field emitted by a strongly excited cascaded system of two-level emitters. This approach thus provides an effective and scalable method for analyzing cascaded quantum systems with large numbers of particles.

References in corpus (28)

• Chiral Quantum Optics
• Quantum interface between light and atomic ensembles
• Deterministic photon-emitter coupling in chiral photonic circuits
• Quantum Optics of Chiral Spin Networks
• Quantum emitters coupled to surface plasmons of a nano-wire: A Green function approach
• Phase-space formulation of quantum mechanics and quantum state reconstruction for physical systems with Lie-group symmetries
• Driven-dissipative preparation of entangled states in cascaded quantum-optical networks
• Many-Body Quantum Spin Dynamics with Monte Carlo Trajectories on a Discrete Phase Space
• Dicke Superradiance in Solids
• Interfacing a quantum dot spin with a photonic circuit
• Dynamics of many-body photon bound states in chiral waveguide QED
• Non-reciprocal few-photon devices based on chiral waveguide-emitter couplings
• Modification of radiation pressure due to cooperative scattering of light
• Dipole-dipole shift of quantum emitters coupled to surface plasmons of a nano-wire
• Collective radiative dynamics of an ensemble of cold atoms coupled to an optical waveguide
• Many-body superradiance and dynamical mirror symmetry breaking in waveguide QED
• Observation of superradiant bursts in a cascaded quantum system
• Direct observation of photon bound states using a single artificial atom
• Controlled multi-photon subtraction with cascaded Rydberg superatoms as single-photon absorbers
• Collective excitation and decay of waveguide-coupled atoms: from timed Dicke states to inverted ensembles
• Quantum vortices of strongly interacting photons
• Hybrid discrete-continuous truncated Wigner approximation for driven, dissipative spin systems
• Collective Excitation Dynamics of a Cold Atom Cloud
• Collective Radiative Interactions in the Discrete Truncated Wigner Approximation
• Bopp operators and phase-space spin dynamics: Application to rotational quantum brownian motion
• Non-exponential decay of a collective excitation in an atomic ensemble coupled to a one-dimensional waveguide
• Higher-order mean-field theory of chiral waveguide QED
• Emergence of solitons from many-body photon bound states in quantum nonlinear media

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• Chiral quantum optics: recent developments, and future directions
• User-friendly TWA for dissipative spin dynamics
• Effects of retardation on many-body superradiance in chiral waveguide QED
• Photon-mediated dipole-dipole interactions as a resource for quantum science and technology in cold atoms
• Symmetry based efficient simulation of dissipative quantum many-body dynamics in subwavelength quantum emitter arrays
• Emergence of second-order coherence in superfluorescence
• Phase-Space Methods for Many-Body Quantum Optics
• Short-time behavior of a system ruled by non-Hermitian time-dependent Hamiltonians
• Exact Many-body Quantum Dynamics in One-Dimensional Baths via Collective Spins