Results 11 to 20 of about 414 (119)
Subradiance-protected excitation spreading in the generation of collimated photon emission from an atomic array [PDF]
Physical Review Research, 2020 We show how an initial localized radiative excitation in a two-dimensional array of cold atoms can be converted into highly directional coherent emission of light by protecting the spreading of the excitation across the array in a subradiant collective ...
Kyle Ballantine
exaly +6 more sources
Exponential Improvement in Photon Storage Fidelities Using Subradiance and “Selective Radiance” in Atomic Arrays [PDF]
Physical Review X, 2017 A central goal within quantum optics is to realize efficient, controlled interactions between photons and atomic media. A fundamental limit in nearly all applications based on such systems arises from spontaneous emission, in which photons are absorbed ...
Maria Moreno-Cardoner +2 more
exaly +3 more sources
Bath‐Induced Collective Phenomena on Superconducting Qubits: Synchronization, Subradiance, and Entanglement Generation [PDF]
Annalen der Physik, Volume 533, Issue 5, May 2021., 2021 A common environment acting on a pair of qubits gives rise to a plethora of different phenomena, such as the generation of qubit–qubit entanglement, quantum synchronization, and subradiance. Time‐independent figures of merit for entanglement generation, quantum synchronization, and subradiance, are defined, and an extensive analytical and numerical ...
Marco Cattaneo +4 more
wiley +2 more sources
Deterministic steady-state subradiance within a single-excitation basis
npj Quantum InformationSubradiance shows promising applications in quantum information, yet its realization remains more challenging than superradiance due to the need to suppress various decay channels. This study introduces a state space within a single-excitation basis with
Meng-Jia Chu, Jun Ren, Z. D. Wang
doaj +2 more sources
Subradiance-protected excitation transport [PDF]
New Journal of Physics, 2019 We explore excitation transport within a one-dimensional chain of atoms where the atomic transition dipoles are coupled to the free radiation field. When the atoms are separated by distances smaller or comparable to the wavelength of the transition, the ...
Jemma A Needham +2 more
doaj +2 more sources
Subradiance and radiation trapping in cold atoms
New Journal of Physics, 2018 We experimentally and numerically study the temporal dynamics of light scattered by large clouds of cold atoms after the exciting laser is switched off, in the low intensity (linear-optics) regime. Radiation trapping due to multiple scattering as well as
Patrizia Weiss +3 more
doaj +2 more sources
Super- and subradiance of clock atoms in multimode optical waveguides
New Journal of Physics, 2019 The transversely confined propagating modes of an optical fiber mediate virtually infinite range energy exchanges among atoms placed within their field, which adds to the inherent free space dipole–dipole coupling.
Laurin Ostermann +3 more
doaj +2 more sources
Controlling narrowband phosphorescence and delayed fluorescence by aggregate size [PDF]
Nature CommunicationsExciton coherence is a phenomenon involving collective electronic transition dipole moments of molecular aggregates with interesting photophysical behaviors such as superradiance and subradiance in J- and H-type aggregates, respectively. Although singlet
Guangjian Cheng +12 more
doaj +2 more sources
Storage and Release of Subradiant Excitations in a Dense Atomic Cloud
Physical 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
, 2022 Cooperative optical effects provide a pathway to both the amplification (superradiance) and the suppression (subradiance) of photon emission from electronically excited states.
Damián A. Scherlis (1773820) +3 more
core +3 more sources