Results 1 to 10 of about 1,174 (142)

Strongly subradiant states in planar atomic arrays [PDF]

open access: yesNanophotonics
The optically trapped ensembles of atoms provide a versatile platform for storing and coherent manipulation of quantum information. However, efficient realization of quantum information processing requires long-lived quantum states protected from the ...
Volkov Ilya A.   +5 more
doaj   +6 more sources

Nonreciprocal total cross section of quantum metasurfaces [PDF]

open access: yesNanophotonics, 2023
Nonreciprocity originating from classical interactions among nonlinear scatterers has been attracting increasing attention in the quantum community, offering a promising tool to control excitation transfer for quantum information processing and quantum ...
Nefedkin Nikita   +2 more
doaj   +3 more sources

Directional spontaneous emission in photonic crystal slabs [PDF]

open access: yesNanophotonics
Spontaneous emission is one of the most fundamental out-of-equilibrium processes in which an excited quantum emitter relaxes to the ground state due to quantum fluctuations.
Navarro-Barón Erik P.   +2 more
doaj   +3 more sources

Directional subradiance from helical-phase-imprinted multiphoton states [PDF]

open access: yesScientific Reports, 2018
We theoretically investigate the far-field scattering properties of multiphoton super- and subradiant states which can be prepared by multiphoton excitations with orbital angular momentum (OAM).
H. H. Jen
doaj   +6 more sources

Cavity-mediated collective emission from steady-state subradiance [PDF]

open access: yesNature Communications
Cooperative effects such as super(or sub)radiance in quantum systems arise from the interplay among quantum emitters. While bright superradiant states have been extensively studied and have yielded important insights into cooperative phenomena ...
Kyu-Young Kim   +7 more
doaj   +2 more sources

Optimization of photon storage fidelity in ordered atomic arrays [PDF]

open access: yesNew Journal of Physics, 2018
A major application for atomic ensembles consists of a quantum memory for light, in which an optical state can be reversibly converted to a collective atomic excitation on demand. There exists a well-known fundamental bound on the storage error, when the
M T Manzoni   +5 more
doaj   +2 more sources

Communication and the emergence of collective behavior in living organisms: a quantum approach. [PDF]

open access: yesMol Biol Int, 2013
Intermolecular interactions within living organisms have been found to occur not as individual independent events but as a part of a collective array of interconnected events. The problem of the emergence of this collective dynamics and of the correlated biocommunication therefore arises.
Bischof M, Del Giudice E.
europepmc   +2 more sources

Collective single-photon emission and energy transfer in thin-layer dielectric and plasmonic systems [PDF]

open access: yesNanophotonics
We study the collective photon decay of multiple quantum emitters embedded in a thin high-index dielectric layer such as hexagonal boron nitride (hBN), with and without a metal substrate.
Jørgensen Mads A.   +5 more
doaj   +2 more sources

Negative refraction of light in an atomic medium [PDF]

open access: yesNature Communications
The quest to manipulate light propagation in ways not possible with natural media has driven the development of artificially structured metamaterials. One of the most striking effects is negative refraction, where the light beam deflects away from the ...
L. Ruks   +2 more
doaj   +2 more sources

Storage and Release of Subradiant Excitations in a Dense Atomic Cloud

open access: yesPhysical Review X, 2021
We report the observation of subradiance in dense ensembles of cold ^{87}Rb atoms operating near Dicke’s regime of a large number of atoms in a volume with dimensions smaller than the transition wavelength.
Giovanni Ferioli   +4 more
doaj   +1 more source

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