213 citations · 699 across the 22 of their papers we have counts for
22 papers
Nanofibre-based trap for Rb molecule
M. Màrquez-Mijares, B. Lepetit, E. Brion
We describe a theoretical proposal of a nanofibre-based trap for a Rb molecule prepared in the metastable state . The trapping potential results from the combinatio…
Interaction of two Rydberg atoms in the vicinity of an optical nanofibre
E. Stourm, M. Lepers, J. Robert +3
We consider two rubidium atoms, prepared in the same S or P Rydberg states near an optical nanofibre. We determine the van der Waals interaction between them and identify novel fea…
Birefringence and dichroism effects in the spin noise spectra of a spin-1 system
S. Liu, P. Neveu, L. Hemmen +4
We perform spin noise spectroscopy experiments in metastable helium atoms at room temperature, with a probe light whose frequency is blue detuned from the D0 line. Both circular bi…
Phase Sensitive Amplification Enabled by Coherent Population Trapping
Pascal Neveu, Chitram Banerjee, Jasleen Lugani +3
We isolate a novel four-wave mixing process, enabled by Coherent Population Trapping (CPT), leading to efficient phase sensitive amplification. This process is permitted by the exp…
Coherent Population Oscillation-Based Light Storage
P. Neveu, M. -A. Maynard, R. Bouchez +5
We theoretically study the propagation and storage of a classical field in a -type atomic medium using coherent population oscillations (CPOs). We show that the propagation eige…
Inelastic photon scattering via the intracavity Rydberg blockade
A. Grankin, E. Brion, R. Boddeda +4
Electromagnetically induced transparency (EIT) in a ladder system involving a Rydberg level is known to yield giant optical nonlinearities for the probe field, even in the few-phot…
Thermalization in a 1D Rydberg gas: validity of the microcanonical ensemble hypothesis
Ruben Y. Cohen, Etienne Brion, Frédéric Grosshans
We question the microcanonical hypothesis, often made to account for the thermalization of complex closed quantum systems, on the specific example of a chain of two-level atoms opt…
Rydberg-induced optical nonlinearities from a cold atomic ensemble trapped inside a cavity
Rajiv Boddeda, Imam Usmani, Erwan Bimbard +4
We experimentally characterize the optical nonlinear response of a cold atomic medium placed inside an optical cavity, and excited to Rydberg states. The excitation to S and D Rydb…
Counterdiabatic driving in spin squeezing and Dicke state preparation
Tomáš Opatrný, Hamed Saberi, Etienne Brion +1
A method is presented to transfer a system of two-level atoms from a spin coherent state to a maximally spin squeezed Dicke state, relevant for quantum metrology and quantum inform…
Time-dependent phase shift of a retrieved pulse in off-resonant EIT-based light storage
M. -A. Maynard, R. Bouchez, J. Lugani +3
We report measurements of the time-dependent phases of the leak and retrieved pulses obtained in EIT storage experiments with metastable helium vapor at room temperature. In partic…
Photonic Controlled-Phase Gates Through Rydberg Blockade in Optical Cavities
Sumanta Das, Andrey Grankin, Ivan Iakoupov +7
We propose a novel scheme for high fidelity photonic controlled phase gates using Rydberg blockade in an ensemble of atoms in an optical cavity. The gate operation is obtained by f…
Quantum optical non-linearities induced by Rydberg-Rydberg interactions: a perturbative approach
A. Grankin, E. Brion, E. Bimbard +4
In this article, we theoretically study the quantum statistical properties of the light transmitted through or reflected from an optical cavity, filled by an atomic medium with str…
Light storage in a room temperature atomic vapor based on coherent population oscillations
M. -A. Maynard, F. Bretenaker, F. Goldfarb
We report the experimental observation of Coherent Population Oscillation (CPO) based light storage in an atomic vapor cell at room temperature. Using the ultranarrow CPO between t…
Quantum repeater with Rydberg blocked atomic ensembles in fiber-coupled cavities
E. Brion, F. Carlier, V. M. Akulin +1
We propose and analyze a quantum repeater architecture in which Rydberg blocked atomic ensembles inside optical cavities are linked by optical fibers. Entanglement generation, swap…
Quantum statistics of light transmitted through an intracavity Rydberg medium
A. Grankin, E. Brion, E. Bimbard +4
We theoretically investigate the quantum statistical properties of light transmitted through an atomic medium with strong optical non-linearity induced by Rydberg-Rydberg van der W…
Observation and measurement of an extra phase shift created by optically detuned light storage in metastable helium
M. -A. Maynard, T. Labidi, M. Mukhtar +4
Electromagnetically induced transparency (EIT) in metastable helium at room temperature is experimentally shown to exhibit light storage capabilities for intermediate values of the…
Cavity Quantum Electrodynamics with a Rydberg blocked atomic ensemble
Christine Guerlin, Etienne Brion, Tilman Essslinger +1
We propose to implement the Jaynes-Cummings model by coupling a few-micrometer large atomic ensemble to a quantized cavity mode and classical laser fields. A two-photon transition…
Error correction in ensemble registers for quantum repeaters and quantum computers
Etienne Brion, Line Hjortshoj Pedersen, Mark Saffman +1
We propose to use a collective excitation blockade mechanism to identify errors that occur due to disturbances of single atoms in ensemble quantum registers where qubits are stored…
Universal Quantum Computation in a Neutral Atom Decoherence Free Subspace
E. Brion, L. H. Pedersen, K. Molmer +2
In this paper, we propose a way to achieve protected universal computation in a neutral atom quantum computer subject to collective dephasing. Our proposal relies on the existence…
Adiabatic Elimination in a Lambda System
E. Brion, L. H. Pedersen, K. Molmer
This paper deals with different ways to extract the effective two-dimensional lower level dynamics of a lambda system excited by off-resonant laser beams. We present a commonly use…
Coherence protection by the quantum Zeno effect and non-holonomic control in a Rydberg Rubidium isotope
E. Brion, V. M. Akulin, D. Comparat +6
The protection of the coherence of open quantum systems against the influence of their environment is a very topical issue. A scheme is proposed here which protects a general quant…
Decoherence Correction by the Zeno Effect and Non-Holonomic Control
E. Brion, G. Harel, N. Kebaili +2
We show that multidimensional Zeno effect combined with non-holonomic control allows to efficiently protect quantum systems from decoherence by a method similar to classical coding…