Romain Pierre Marcel Bachelard
CV Lattes
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Universidade de São Paulo (USP). Instituto de Física de São Carlos (IFSC) (Institutional affiliation for the last research proposal) Birthplace: França
I graduated in Physics at École Normal Supérieure de Lyon (2002), obtained Masters in Didactics and History of Science (Université Lyon 1, 2004) and Theoretical Physics (Université Aix-Marseille, 2005), and a PhD in Physics (Universite Aix-Marseille, 2008). In São Carlos SP (Brazil) since 2011, I am working on light-matter interaction, with an emphasis on light scattering by atomic clouds, as well as long-range interacting systems. Since Feb. 2017 I am a junior Professor at the Department of Physics of the Federal University of São Carlos (Source: Lattes Curriculum)
- Transport and localization of light in two and three dimensions, AP.JP2
Abstract
This project aims at investigating light scattering in two and three dimensions, with a focus on the transition to the Anderson localization regime. Over the past few years, the existence of such a localization phenomenon has been intensely debated, with experimental results being reinterpreted and previous claims retracted, whereas theoretical results suggested the vectorial nature of ...
- Workshop on collective scattering of light 2018, AR.BR
- Workshop on collective scattering of light: from Microsopic to macroscopic scales, AO.R
- Cooperative shielding from long range interaction in classical many body systems, AV.EXT
Abstract
The present project aims at investigating the presence of 'cooperative robustness' and 'shielding' for systems with long-range interactions: these effects are the signatures of the emergence of two dynamics with very different time scales (one very fast compared to the single-particle dynamics, and the other very slow), which subspaces are essentially decoupled. The project addresses bo...
(Only some records are available in English at this moment)
- Lieb-Robinson bounds and superradiance in ultracold atomic clouds, BP.DD
Abstract
This project corresponds to the final phase of the Direct PhD of the candidate, which started in July 2015, and will end in July 2018 due to the conclusion of the Young Researcher Project of the supervisor. The candidate will conclude three projects which are well advanced. The first addresses subradiance and superradiance in clouds of saturated atoms. The second, initiated during a BEP...
- Entanglement and blockade effects in ultracold atomic clouds, BP.PD
Abstract
This project addresses bipartite entanglement and blockade effects in cold and dilute atomic clouds scattering light. These systems exhibit long-range interactions which result in extended collective modes, despite the two-atom interaction being weak. Our goal is to investigate the potential of these systems to generate entanglement at the scale of the system, as well as blockade effect...
- Lieb-Robinson bounds and superradiance in ultracold atomic clouds, BP.DD
Abstract
This DD project aims at studying the propagation of dipolar excitations and quantum correlations in a cloud of cold atoms. We are interested in the regime where superradiant effects are dominant compared to diffusive ones, when light-mediated long-ronge interactions take over between the light scatterers. We will use both mathematical techniques, such as Lieb-Robinson bounds, and numeri...
- Self-organization processes and transport properties of light in cold atomic clouds, BP.DR
Abstract
The electromagnetic radiation that reaches our eyes every moment rarely comes from its original source. Looking for a tree or the sky, we can see the sunlight scattered by a multitude of microscopic particles. Depending on the scatterers characteristics and their collective behavior, the properties of light transport can be drastically changed. This makes collective light scattering a p...
(Only some records are available in English at this moment)
- Quantum correlations and entanglement in atomic clocks, BE.EP.PD
Abstract
In this research internship abroad project we address the possibility of generating entanglement and other phenomena resulting from quantum correlations in cold atomic ensembles scattering light, focusing on the dilute limit, where dipole-dipole interactions are dominated by the far-field terms. Atomic clocks in optical lattices are particularly interesting platforms to implement this l...
- Beyond the linear optics limit: quantum effects in a ultracold dilute cloud, BE.EP.DD
Abstract
This project aims at investigating the intensity of the emitted far-field by dilute atomic clouds where the light-mediated long-range interaction predominates. Spontaneous emission and interference effects then play an important role, differently from subwavelength systems of Rydberg atoms, yet the multiple scattering of light allows for remote atoms to exhibit correlations. During this...
- Correlations of the light scattered by atomic clouds, BE.PQ
Abstract
This project addresses correlations in the light scattered by disordered atomic clouds, due to the interaction between atomic dipoles. We will study both classical and quantum effects, with a special attention to experimental signatures, in order to interpret and stimulate experiments in the INPHYNI. In particular, we aim to investigate the light statistics of speckle (for ex., the Sieg...
- Blockade effects with light-mediated dipole-dipole interactions, BE.EP.DD
Abstract
This project aims at investigating blockade effects (i.e., the presence of an excited atom preventing the excitation of its neighbours) in dilute atomic clouds where the light-mediated long-range interaction predominates. Spontaneous emission and interference effects then play an important role, differently from subwavelength systems of Rydberg atoms, yet the multiple scattering of ligh...
(Only some records are available in English at this moment)
| 1 / 1 | Ongoing research grants |
| 6 / 5 | Completed research grants |
| 1 / 1 | Ongoing scholarships in Brazil |
| 5 / 5 | Completed scholarships in Brazil |
| 1 / 1 | Ongoing scholarships abroad |
| 4 / 4 | Completed scholarships abroad |
| 18 / 17 | All research grants and scholarships |
| Associated processes | |
(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)
| Publications | 12 |
| Citations | 29 |
| Cit./Article | 2.4 |
| Data from Web of Science | |
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. (14/19459-6, 16/14324-0, 14/01491-0)
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. (13/04162-5, 15/21194-3, 14/01491-0)
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. (13/04162-5, 15/21194-3, 14/01491-0)
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: 2. (14/01491-0)
COTTIER, FLORENT; CIPRIS, ANA; BACHELARD, ROMAIN; KAISER, ROBIN. Microscopic and Macroscopic Signatures of 3D Anderson Localization of Light. Physical Review Letters, v. 123, n. 8, AUG 23 2019. Web of Science Citations: 0. (18/01447-2)
CIDRIM, ANDRE; DOS SANTOS, FRANCISCO E. A.; HENN, EMANUEL A. L.; MACRI, TOMMASO. Vortices in self-bound dipolar droplets. Physical Review A, v. 98, n. 2, AUG 15 2018. Web of Science Citations: 9. (15/20475-9, 17/09390-7, 13/07276-1)
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. (13/04162-5, 15/21194-3, 14/01491-0)
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. (14/01491-0)
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. (13/07276-1, 14/01491-0)
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. (14/19459-6, 14/01491-0)
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: 4. (14/01491-0)
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: 5. (14/50744-9, 14/01491-0, 15/10763-7)
DISPOSITIVO E MÉTODO PARA MEDIDA DA ACELERAÇÃO GRAVITACIONAL BR1020150079443 - Universidade de São Paulo (USP). Philippe Wilhelm Courteille; Romain Pierre Marcel Bachelard - April 2015, 09