From superradiance to subradiance: exploring the many-body Dicke ladder
, 2021 We report a time-resolved study of collective emission in dense ensembles of two-level atoms. We compare, on the same sample, the build-up of superradiance and subradiance from the ensemble when driven by a strong laser.
Antoine Browaeys (14366532) +3 more
core +1 more source
Dimerization of Many-Body Subradiant States in Waveguide Quantum Electrodynamics [PDF]
Physical Review Letters, 2021 We study theoretically subradiant states in the array of atoms coupled to photons propagating in a one-dimensional waveguide focusing on the strongly interacting many-body regime with large excitation fill factor $f$. We introduce a generalized many-body entropy of entanglement based on exact numerical diagonalization followed by a high-order singular ...
Alexander V. Poshakinskiy +1 more
openaire +3 more sources
Subradiant states of quantum bits coupled to a one-dimensional waveguide
New Journal of Physics, 2019 The properties of coupled emitters can differ dramatically from those of their individual constituents. Canonical examples include sub- and super-radiance, wherein the decay rate of a collective excitation is reduced or enhanced due to correlated ...
Andreas Albrecht +5 more
doaj +1 more source
Extreme subradiance from two-band Bloch oscillations in atomic arrays
, 2023 Atomic arrays provide an important quantum optical platform with photon-mediated dipoledipole interactions, which can be engineered to realize key applications in quantum information processing.
Da-Wei Wang (238284) +4 more
core +2 more sources
Spatial Coherence of Light in Collective Spontaneous Emission
PRX Quantum, 2022 When a quantum system is put into an excited state, it will decay back to the ground state through a process termed spontaneous emission. It is generally assumed that spontaneous emissions between different individual emitters will not be coherent with ...
D. C. Gold +6 more
doaj +1 more source
From superradiance to subradiance: exploring the many-body Dicke ladder
, 2022 International audienceWe report a time-resolved study of collective emission in dense ensembles of two-level atoms. We compare, on the same sample, the buildup of superradiance and subradiance from the ensemble when driven by a strong laser.
Ferrier-Barbut, Igor +3 more
core +1 more source
Polarization control of radiation and energy flow in dipole-coupled nanorings
New Journal of Physics, 2020 Collective optical excitations in dipole-coupled nanorings of sub-wavelength spaced quantum emitters exhibit extreme sub-radiance and field confinement facilitating an efficient and low-loss ring-to-ring energy transfer.
J Cremer +4 more
doaj +1 more source
Hybrid cavity‐antenna systems for quantum optics outside the cryostat?
Nanophotonics, Volume 8, Issue 9, Page 1513-1531, June 2018., 2018 Abstract Hybrid cavity‐antenna systems have been proposed to combine the sub‐wavelength light confinement of plasmonic antennas with microcavity quality factors Q. Here, we examine what confinement and Q can be reached in these hybrid systems, and we address their merits for various applications in classical and quantum optics.
Isabelle M. Palstra +2 more
wiley +1 more source
Exact Markovian and non-Markovian time dynamics in waveguide QED: collective interactions, bound states in continuum, superradiance and subradiance [PDF]
Quantum, 2019 We develop a formalism for modelling $exact$ time dynamics in waveguide quantum electrodynamics (QED) using the real-space approach. The formalism does not assume any specific configuration of emitters and allows the study of Markovian dynamics $\textit ...
Fatih Dinc +2 more
doaj +1 more source
Subradiance in multiply excited states of dipole-coupled V-type atoms
, 2020 We generalize the theoretical modeling of collective atomic super- and subradiance to the multilevel case including spontaneous emission from several excited states towards a common ground state.
Raphael Holzinger +2 more
core +1 more source