Results 61 to 70 of about 367 (159)
Cooperative Decay of an Ensemble of Atoms in a One-Dimensional Chain with a Single Excitation
AtomsWe propose a new expression of the cooperative decay rate of a one-dimensional chain of N two-level atoms in the single-excitation configuration. From it, the interference nature of superradiance and subradiance arises naturally, without the need to ...
Nicola Piovella
doaj +1 more source
Subradiance protected excitation transport [PDF]
, 2020 We investigate collective behaviour that appears in open, many-body systems of two- and four-level atoms. Here, ``open" refers to the system interacting with an external environment that causes dissipation.
Needham, Jemma Ann
core +1 more source
Cooperative states and shift in resonant scattering of an atomic ensemble
New Journal of PhysicsWe investigate the spectral shift known as the collective Lamb shift in forward scattering for a cold dense atomic cloud. The shift results from resonant dipole–dipole interaction mediated by real and virtual photon exchange, forming many-body states ...
Ting Hsu, Kuan-Ting Lin, Guin-Dar Lin
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Dynamic control of super- and subradiance of quantum emitters via near-field photonics and time-varying media [PDF]
APL QuantumAchieving dynamic and broadband control of superradiance and subradiance at elevated temperatures is central to quantum photonic technologies. Herein, we theoretically investigate near-field photonics combined with adiabatic and non-adiabatic time ...
Frank D. Bello +4 more
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, 2023 Recent works have shown that collective single photon spontaneous emission from an ensemble of $N$ resonant two-level atoms is a rich field of study. Superradiance describes emission from a completely symmetric state of $N$ atoms, with a single excited ...
Olivares, Stefano +3 more
core +1 more source
Subradiant Decay in 2D and 3D Atomic Arrays
PhotonicsSubradiance is a phenomenon where coupled emitters radiate light at a slower rate than independent ones. While its observation was first reported in disordered cold atom clouds, ordered subwavelength arrays of emitters have emerged as promising platforms
Nicola Piovella, Romain Bachelard
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Multimode cold-damping optomechanics with delayed feedback
Physical Review Research, 2020 We investigate the role of time delay in cold-damping optomechanics with multiple mechanical resonances. For instantaneous electronic response, it was recently shown by C. Sommer and C. Genes [Phys. Rev. Lett.
Christian Sommer +2 more
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Quantum Simulation of Dissipative Collective Effects on Noisy Quantum Computers
PRX Quantum, 2023 Dissipative collective effects are ubiquitous in quantum physics and their relevance ranges from the study of entanglement in biological systems to noise mitigation in quantum computers.
Marco Cattaneo +4 more
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Superradiant to subradiant phase transition in the open system Dicke model: dark state cascades
New Journal of Physics, 2018 Collectivity in ensembles of atoms gives rise to effects like super- and subradiance. While superradiance is well studied and experimentally accessible, subradiance remains elusive since it is difficult to track experimentally as well as theoretically ...
Michael Gegg +3 more
doaj +1 more source
Femtosecond Light Transmission and Subradiant Damping in Plasmonic Crystals
Physical Review Letters, 2005 We report the first observation of subradiance in plasmonic nanocrystals. Amplitude- and phase-resolved ultrafast transmission experiments directly reveal the coherent coupling between surface plasmon polaritons (SPPs) induced by periodic variations in the dielectric function. This interaction results in the formation of plasmonic band gaps and coupled
Ropers, C +6 more
openaire +5 more sources