ANR project: Cold atoms, photons, and quantum correlations (QuaCor)
Cold atoms coupled to photons are a promising platform for quantum information, computation and communication. In this project, the goal is to focus on two specific tools: sources of correlated photons and memories, exploiting collective, multimode quantum states of atomic ensembles. The main scientific objectives are:- Explore a new kind of correlated photon source based on a multi-atom ensemble: Our goal is to explore a new kind of source of photons, based on the correlations inside the Mollow triplet, and using a many-atom system such as a cold atomic cloud.
- Long-lived quantum memories with atomic ensembles: Our goal is to exploit collective subradiant states of atomic ensembles as novel memories.
News & events
Sept. 2022: CoScaLi workshop at Porquerolles
Mathilde, Robin, and Romain have organized the 2022 workshop on Collective Scattering of Light (CoScaLi) on the beautiful island of Porquerolles. This event has been a success!
Sept. 2021: CoScaLi workshop at Porquerolles
Mathilde, Robin, and Romain have organized the 2021 workshop on Collective Scattering of Light (CoScaLi) on the beautiful island of Porquerolles. This hybrid event (both on-line and in-person) has been a success!
Consortium
- Institut de Physique de Nice, team "cold atoms" (UCA, CNRS)
- Universidade Federal de São Carlos (UFSCar), São Carlos (Brazil)
- Instituto de Física de São Carlos (IFSC), Universidade de São Paulo (USP), São Calos (Brazil)
Publications
Breaking of reciprocity and the Pancharatnam-Berry phase for light scattered by a disordered cold atom cloud
P. H. N. Magnani, P. G. S. Dias, M. Frometa, M. A. Martins, N. Piovella, R. Kaiser, Ph. W. Courteille, M. Hugbart, R. Bachelard, R. C. Teixeira
Preprint : arXiv:2401.0529
Condensation of vanishing photon emission rates in random atomic clouds
V. Viggiano, R. Bachelard, F. Deelan Cunden, P. Facchi, R. Kaiser, S. Pascazio, F. V. Pepe, A. Scardicchio
preprint: arXiv:2407.11858
Nonlinear effects in Anderson localization of light by two-level atoms
N. Araujo Moreira, R. Kaiser, and R. Bachelard
Phys. Rev. A (L) 109, L031501 (2024), preprint: arXiv:2311.01632
Detecting entanglement from macroscopic measurements of the electric field and its fluctuations
P. Rosario, A. C. Santos, N. Piovella, R. Kaiser, A. Cidrim, and R. Bachelard,
Phys. Rev. Lett. 133, 050203 (2024), preprint: arXiv:2404.15973
Temporal coherences of atomic chaotic light sources: The Siegert relation and its generalisation to higher order correlation functions
M. Morisse, S. Joshi, J. Mika, J. C. C. Capella, R. Kaiser, R. Bachelard3, L. Slodicka,and M. Hugbart
EPL 147, 15001 (2024), preprint: arXiv:2404.01711
Cooperative photon emission rates in random atomic clouds
V. Viggiano, R. Bachelard, F. Deelan Cunden, P. Facchi, R. Kaiser, S. Pascazio, and F. V. Pepe
Phys. Rev. A 108, 063701 (2023), preprint: arXiv:2306.06055
Transition from classical to quantum loss of light coherence
P. Lassègues, M.A.F. Biscassi, M. Morisse, A. Cidrim, P. G. Santos Dias, H. Eneriz, R. Celistrino Teixeira, R. Kaiser, R. Bachelard and M. Hugbart
Phys. Rev. A 108, 042214 (2023) Editors’ suggestion, preprint: arXiv:2210.01003
Super- and subradiance in dilute disordered cold atomic samples: observations and interpretations
W. Guerin
Advances in Atomic, Molecular and Optical Physics 72, 253 (2023), preprint: arXiv:2306.02891
S. Asselie, A. Cipris, W. Guerin
Phys. Rev. A 106, 063712 (2022), preprint: arXiv:2209.00918
Generating long-lived entangled states with free-space collective spontaneous emission
A. Costa dos Santos, A. Cidrim, C. J. Villas-Boas, R. Kaiser, R. Bachelard
Phys. Rev. A 105, 053715 (2022), preprint: arXiv:2110.15033
Field and intensity correlations: the Siegert relation from stars to quantum emitters
P. Lassègues, M.A.F. Biscassi, M. Morisse, A. Cidrim, N. Matthews, G. Labeyrie, J.P. Rivet, F. Vakili, R. Kaiser,W. Guerin, R. Bachelard and M. Hugbart
Eur. Phys. J. D 76, 246 (2022), preprint: arXiv:2209.06480
Mirror-assisted backscattering interferometry to measure the first-order correlation function of the light emitted by quantum scatterers
P. G. S. Dias, M. F. Fernandez, P. H. N. Magnani, K. R. B. Theophilo, M. Hugbart, P. W. Courteille, R. Celistrino Teixeira
Phys. Rev. A 104, 053716 (2021), preprint: arXiv:2108.01437
Subradiance in dilute atomic ensembles: Role of pairs and multiple scattering
Y. A. Fofanov, I. M. Sokolov, R. Kaiser, W. Guerin
Phys. Rev. A 104, 023705 (2021), preprint: arXiv:2012.10659
Photon-photon correlations from a pair of strongly coupled two-level emitters
E. Darsheshdar, M. Hugbart, R. Bachelard, C. J. Villas-Boas
Phys. Rev. A 103, 053702 (2021), preprint: arXiv:2012.03735
van der Waals dephasing for Dicke subradiance in cold atomic clouds
A. Cipris, R. Bachelard, R. Kaiser, W. Guerin
Phys. Rev. A 103, 033714 (2021), preprint: arXiv:2012.06248
Subradiance with saturated atoms: population enhancement of the long-lived states
A. Cipris, N. A. Moreira, T. S. do Espirito Santo, P. Weiss, C. J. Villas-Boas, R. Kaiser, W. Guerin, R. Bachelard
Phys. Rev. Lett. 126, 103604 (2021), preprint: arXiv:2009.05172
Superradiance as single scattering embedded in an effective medium
P. Weiss, A. Cipris, R. Kaiser, I. M. Sokolov, W. Guerin
Phys. Rev. A 103, 023702 (2021), preprint: arXiv:2011.05201
Collective excitation dynamics of a cold atom cloud
A. Cidrim, T. S. do Esperito Santo, J. Schachenmayer, R. Kaiser, R. Bachelard
Phys. Rev. A 101, 013617 (2020), preprint: arXiv:1910.06679
Connecting field and intensity correlations: The Siegert relation and how to test it
D. Ferreira, R. Bachelard, W. Guerin, R. Kaiser, M. Fouché
Am. J. Phys. 88, 831 (2020), preprint: arXiv:2002.05425
Photon blockade with ground-state neutral atoms
A. Cidrim, T. S. do Espirito Santo, J. Schachenmayer, R. Kaiser, R. Bachelard
Phys. Rev. Lett. 125, 073601 (2020), preprint: arXiv:2004.14720