Storage and release of subradiant excitations in a dense atomic cloud

G Ferioli, A Glicenstein, L Henriet, I Ferrier-Barbut… - Physical Review X, 2021 - APS
We report the observation of subradiance in dense ensembles of cold Rb 87 atoms
operating near Dicke's regime of a large number of atoms in a volume with dimensions …

Collective shift in resonant light scattering by a one-dimensional atomic chain

A Glicenstein, G Ferioli, N Šibalić, L Brossard… - Physical Review Letters, 2020 - APS
We experimentally study resonant light scattering by a one-dimensional randomly filled
chain of cold two-level atoms. By a local measurement of the light scattered along the chain …

Nanoscale continuous quantum light sources based on driven dipole emitter arrays

R Holzinger, M Moreno-Cardoner, H Ritsch - Applied Physics Letters, 2021 - pubs.aip.org
Regular arrays of two-level emitters at distances smaller than that of the transition
wavelength collectively scatter, absorb, and emit photons. The strong inter-particle dipole …

Preparation of one-dimensional chains and dense cold atomic clouds with a high numerical aperture four-lens system

A Glicenstein, G Ferioli, L Brossard, YRP Sortais… - Physical Review A, 2021 - APS
We report the efficient and fast (∼ 2 Hz) preparation of randomly loaded one-dimensional
(1D) chains of individual Rb 87 atoms and of dense atomic clouds trapped in optical …

Quantum jump spectroscopy of a single neutral atom for precise subwavelength intensity measurements

LC Bianchet, N Alves, L Zarraoa, T Lamich… - Physical Review …, 2022 - APS
We present precise, subwavelength optical intensity measurements using a single trapped
Rb 87 atom as a sensor. The intensity is measured by the scalar ac Stark shift it produces on …

Telling different unravelings apart via nonlinear quantum-trajectory averages

E Piñol, TK Mavrogordatos, D Keys, R Veyron… - Physical Review …, 2024 - APS
The Gorini-Kossakowski-Sudarshan-Lindblad master equation (ME) governs the density
matrix of open quantum systems (OQSs). When an OQS is subjected to weak continuous …

Quantum jump photodetector for narrowband photon counting with a single atom

L Zarraoa, R Veyron, T Lamich, LC Bianchet… - Physical Review …, 2024 - APS
Using a single neutral Rb 87 atom held in an optical trap, and “quantum jump” detection of
single-photon-initiated state changes, we demonstrate a single-photon quantum jump …

Engineering analog quantum chemistry Hamiltonians using cold atoms in optical lattices

J Argüello-Luengo, T Shi, A González-Tudela - Physical Review A, 2021 - APS
Using quantum systems to efficiently solve quantum chemistry problems is one of the long-
sought applications of near-future quantum technologies. In a recent work [J. Argüello …

Narrowband photon pairs with independent frequency tuning for quantum light-matter interactions

V Prakash, LC Bianchet, MT Cuairan, P Gomez… - Optics express, 2019 - opg.optica.org
We describe a cavity-enhanced spontaneous parametric down-conversion (CE-SPDC)
source for narrowband photon pairs with filters designed such that 97.7% of the correlated …

[HTML][HTML] Manipulating and measuring single atoms in the Maltese cross geometry

LC Bianchet, N Alves, L Zarraoa, N Bruno… - Open Research …, 2021 - ncbi.nlm.nih.gov
Background: Optical microtraps at the focus of high numerical aperture (high-NA) imaging
systems enable efficient collection, trapping, detection and manipulation of individual neutral …