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Atomic clouds under stress

Grant number: 14/01491-0
Support type:Research Grants - Young Investigators Grants
Duration: August 01, 2014 - July 31, 2018
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Romain Pierre Marcel Bachelard
Grantee:Romain Pierre Marcel Bachelard
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Associated grant(s):18/15554-5 - Transport and localization of light in two and three dimensions, AP.JP2
15/16649-1 - Cooperative shielding from long range interaction in classical many body systems, AV.EXT
14/50744-9 - Bounds on the propagation of light in cold atomic clouds, AP.R
Associated scholarship(s):17/09390-7 - Entanglement and blockade effects in ultracold atomic clouds, BP.PD
15/10763-7 - Lieb-Robinson bounds and superradiance in ultracold atomic clouds, BP.DD
14/19459-6 - Self-organization processes and transport properties of light in cold atomic clouds, BP.DR
14/23275-8 - Atomic clouds under stress, BP.JP

Abstract

Atomic clouds are versatile and well-isolated platforms allowing to simulate and study in laboratory other complex systems that are more elusive to measurement and manipulation, for example, astrophysical or solid state systems. Particularly interesting are phenomena that can be induced by injected light fields, such as interatomic forces leading to stress called "optical stress". The study of these phenomena, namely the propagation of these optical forces, and the reorganization of the cloud they may lead to, is the main objective of this research proposal. The project comprises two main research lines: The first line addresses the propagation of a macroscopic excitation within the cloud. Such an excitation does not simply propagate at the speed of light, as it may rely on many scattering events, each taking a finite time. Then, we investigate the effect of this macroscopic excitation on the atoms since a scattering event is no more a '1 atom+1 photon' process, as the interference of other atoms come into play. In particular, we intend to shed a new light on the Abraham-Minkowski controversy. The second part of this project focuses on the atomic motion under the effect of this optical stress. The first point is to understand how the transport properties of the light are affected by these optical forces, as the light drives the atoms. The second goal is to understand whether reorganization in presence of high densities of matter or photons may lead to some singular behaviors, such as "photon bubbles". Finally, we aspire to find regimes where self-organization process in two and three dimensions are triggered. (AU)

Scientific publications (11)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ORTIZ-GUTIERREZ, LUIS; TEIXEIRA, RAUL CELISTRINO; ELOY, AURELIEN; DA SILVA, DILLEYS FERREIRA; KAISER, ROBIN; BACHELARD, ROMAIN; FOUCHE, MATHILDE. Mollow triplet in cold atoms. NEW JOURNAL OF PHYSICS, v. 21, SEP 10 2019. Web of Science Citations: 0.
SUAREZ, ELMER; AUWAERTER, DAVID; ARRUDA, TIAGO J.; BACHELARD, ROMAIN; COURTEILLE, PHILIPPE W.; ZIMMERMANN, CLAUS; SLAMA, SEBASTIAN. Photon-antibunching in the fluorescence of statistical ensembles of emitters at an optical nanofiber-tip. NEW JOURNAL OF PHYSICS, v. 21, MAR 29 2019. Web of Science Citations: 1.
GISBERT, ANGEL T.; PIOVELLA, NICOLA; BACHELARD, ROMAIN. Stochastic heating and self-induced cooling in optically bound pairs of atoms. Physical Review A, v. 99, n. 1 JAN 22 2019. Web of Science Citations: 0.
BACHELARD, ROMAIN; PIOVELLA, NICOLA; GUPTA, SHAMIK. Slow dynamics and subdiffusion in a non-Hamiltonian system with long-range forces. Physical Review E, v. 99, n. 1 JAN 18 2019. Web of Science Citations: 0.
ARRUDA, TIAGO J.; BACHELARD, ROMAIN; WEINER, JOHN; COURTEILLE, PHILIPPE W. Tunable Fano resonances in the decay rates of a pointlike emitter near a graphene-coated nanowire. Physical Review B, v. 98, n. 24 DEC 26 2018. Web of Science Citations: 2.
COTTIER, FLORENT; KAISER, ROBIN; BACHELARD, ROMAIN. Role of disorder in super- and subradiance of cold atomic clouds. Physical Review A, v. 98, n. 1 JUL 20 2018. Web of Science Citations: 3.
MAXIMO, C. E.; BACHELARD, R.; KAISER, R. Optical binding with cold atoms. Physical Review A, v. 97, n. 4 APR 18 2018. Web of Science Citations: 2.
ELOY, AURELIEN; YAO, ZHIBIN; BACHELARD, ROMAIN; GUERIN, WILLIAM; FOUCHE, MATHILDE; KAISER, ROBIN. Diffusing-wave spectroscopy of cold atoms in ballistic motion. Physical Review A, v. 97, n. 1 JAN 5 2018. Web of Science Citations: 5.
MAXIMO, C. E.; BACHELARD, R.; DE MORAES NETO, G. D.; MOUSSA, M. H. Y. Entanglement detection via atomic deflection. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, v. 34, n. 12, p. 2452-2458, DEC 1 2017. Web of Science Citations: 0.
ARRUDA, TIAGO J.; BACHELARD, ROMAIN; WEINER, JOHN; SLAMA, SEBASTIAN; COURTEILLE, PHILIPPE W. Fano resonances and fluorescence enhancement of a dipole emitter near a plasmonic nanoshell. Physical Review A, v. 96, n. 4 OCT 30 2017. Web of Science Citations: 4.
PUCCI, LORENZO; ROY, ANALABHA; SANTIAGO DO ESPIRITO SANTO, TIAGO; KAISER, ROBIN; KASTNER, MICHAEL; BACHELARD, ROMAIN. Quantum effects in the cooperative scattering of light by atomic clouds. Physical Review A, v. 95, n. 5 MAY 22 2017. Web of Science Citations: 6.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.