Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Labeyrie, Guillaume"'
Autor:
Matthews, Nolan, Rivet, Jean-Pierre, Vernet, David, Hugbart, Mathilde, Labeyrie, Guillaume, Kaiser, Robin, Chabé, Julien, Courde, Clément, Lai, Olivier, Vakili, Farrokh, Garde, Olivier, Guerin, William
We report on observations of the extended environment of the bright Be star $\gamma$-Cas performed using intensity interferometry measurements within its H$\alpha$ emission line. These observations were performed using a modified version of the I2C i
Externí odkaz:
http://arxiv.org/abs/2301.04878
Publikováno v:
Atoms 2022, 10, 153
Considering light-mediated long-range interactions between cold atoms in a magneto-optical trap (MOT), we present numerical evidence of a nonequilibrium steady state (NESS) for sufficiently large number of atoms (> 10^8). This state manifests itself
Externí odkaz:
http://arxiv.org/abs/2212.08705
Autor:
Lassègues, Pierre, Biscassi, Mateus Antônio Fernandes, Morisse, Martial, Cidrim, André, Matthews, Nolan, Labeyrie, Guillaume, Rivet, Jean-Pierre, Vakili, Farrokh, Kaiser, Robin, Guerin, William, Bachelard, Romain, Hugbart, Mathilde
The Siegert relation relates field and intensity temporal correlations. After a historical review of the Siegert relation and the Hanbury Brown and Twiss effect, we discuss the validity of this relation in two different domains. We first show that th
Externí odkaz:
http://arxiv.org/abs/2209.06480
Autor:
Matthews, Nolan, Rivet, Jean-Pierre, Hugbart, Mathilde, Labeyrie, Guillaume, Kaiser, Robin, Lai, Olivier, Vakili, Farrokh, Vernet, David, Chabé, Julien, Courde, Clémont, Schuhler, Nicolas, Bourget, Pierre, Guerin, William
Publikováno v:
Proc. SPIE 12183, Optical and Infrared Interferometry and Imaging VII, 12183G (August 2022)
We present the current status of the I2C stellar intensity interferometer used towards high angular resolution observations of stars in visible wavelengths. In these proceedings, we present recent technical improvements to the instrument, and share r
Externí odkaz:
http://arxiv.org/abs/2209.02477
Autor:
de Almeida, E. S. G., Hugbart, Mathilde, de Souza, Armando Domiciano, Rivet, Jean-Pierre, Vakili, Farrokh, Siciak, Antonin, Labeyrie, Guillaume, Garde, Olivier, Matthews, Nolan, Lai, Olivier, Vernet, David, Kaiser, Robin, Guerin, William
In this paper we report on spatial intensity interferometry measurements within the H$\alpha$ line on two stars: the Luminous Blue Variable supergiant \PCygni\,and the late-type B supergiant Rigel. The experimental setup was upgraded to allow simulta
Externí odkaz:
http://arxiv.org/abs/2204.00372
Publikováno v:
EPL 141, 25002 (2023)
A large cloud of $^{87}$Rb atoms confined in a magneto-optical trap exhibits, in a certain regime of parameters, spatio-temporal instabilities with a dynamics resembling that of a turbulent fluid. We apply the methods of turbulence theory based on st
Externí odkaz:
http://arxiv.org/abs/2108.12257
Autor:
Ackemann, Thorsten, Labeyrie, Guillaume, Baio, Giuseppe, Krešić, Ivor, Walker, Josh G. M., Boquete, Adrian Costa, Griffin, Paul, Firth, William J., Kaiser, Robin, Oppo, Gian-Luca, Robb, Gordon R. M.
This article discusses self-organization in cold atoms via light-mediated interactions induced by feedback from a single retro-reflecting mirror. Diffractive dephasing between the pump beam and the spontaneous sidebands selects the lattice period. Sp
Externí odkaz:
http://arxiv.org/abs/2105.08340
Autor:
Gori, Pierre-Marie, Vakili, Farrokh, Rivet, Jean-Pierre, Guerin, William, Hugbart, Mathilde, Chiavassa, Andrea, Vakili, Adrien, Kaiser, Robin, Labeyrie, Guillaume
We propose a new approach, based on the Hanbury Brown and Twiss intensity interferometry, to transform a Cherenkov telescope to its equivalent optical telescope. We show that, based on the use of photonics components borrowed from quantum-optical app
Externí odkaz:
http://arxiv.org/abs/2105.07072
Publikováno v:
Phys. Rev. A 101, 053626 (2020)
Large clouds of cold atoms prepared in a magneto-optical trap can develop spatio-temporal instabilities when the frequency of the trapping lasers is brought close to the atomic resonance. This system bears close similarities with trapped plasmas, whe
Externí odkaz:
http://arxiv.org/abs/2003.10919
Autor:
Lai, Olivier, Guerin, William, Vakili, Farrokh, Kaiser, Robin, Rivet, Jean Pierre, Fouché, Mathilde, Labeyrie, Guillaume, Chabé, Julien, Courde, Clément, Samain, Etienne, Vernet, David
Publikováno v:
Proceedings of the SPIE, Volume 10701, id. 1070121 12 pp. (2018)
Recent advances in photonics have revived the interest in intensity interferometry for astronomical applications. The success of amplitude interferometry in the early 1970s, which is now mature and producing spectacular astrophysical results (e.g. GR
Externí odkaz:
http://arxiv.org/abs/1810.08023