Zobrazeno 1 - 10
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pro vyhledávání: '"Hugbart M"'
Autor:
Magnani, P. H. N., Dias, P. G. S., Frometa, M., Martins, M. A., Piovella, N., Kaiser, R., Courteille, Ph. W., Hugbart, M., Bachelard, R., Teixeira, R. C.
Collective effects on the light scattered by disordered media such as Anderson localization and coherent backscattering critically depend on the reciprocity between interfering optical paths. In this work, we explore the breaking of reciprocity for t
Externí odkaz:
http://arxiv.org/abs/2401.05297
Akademický článek
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We have measured the momentum distribution of an elongated BEC (aspect ratio of 152), for temperatures below the critical temperature. The corresponding coherence length is significantly smaller than the condensate length in a wide range of temperatu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0309273
We study the properties of elongated Bose-Einstein condensates. First, we show that the dimensions of the condensate after expansion differs from the 3D Thomas-Fermi regime. We also study the coherence length of such elongated condensates.
Comme
Comme
Externí odkaz:
http://arxiv.org/abs/cond-mat/0307253
Publikováno v:
Phys. Rev. Lett. 91, 010405 (2003)
We measure the axial momentum distribution of Bose-Einstein condensates with an aspect ratio of 152 using Bragg spectroscopy. We observe the Lorentzian momentum distribution characteristic of one-dimensional phase fluctuations. The temperature depend
Externí odkaz:
http://arxiv.org/abs/cond-mat/0303137
Publikováno v:
Phys. Rev. A 67, 051602(R) (2003) .
We calculate the spatial correlation function and momentum distribution of a phase-fluctuating, elongated three-dimensional condensate, in a trap and in free expansion. We take the inhomogeneous density profile into account {\it{via}} a local density
Externí odkaz:
http://arxiv.org/abs/cond-mat/0211094
Publikováno v:
Interactions in ultracold gases, M. Weidemuller and C. Zimmermann Eds. (Wiley-VCH, 2003).
We report on the measurement of the momentum distribution of an elongated Bose-Einstein condensate. A broadening of the distribution with increasing temperature is observed, which is clear evidence for phase fluctuations in the sample.
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Externí odkaz:
http://arxiv.org/abs/cond-mat/0210206
Akademický článek
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Akademický článek
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Autor:
Guerin, W., Rivet, J. -P., Hugbart, M., F. Vakili, de Almeida, E. S. G., Domiciano de Souza, A., Labeyrie, G., Matthews, N., Lai, O., Gori, P. -M., Vernet, D., Chabé, J., Courde, C., Samain, E., Castilho, B. V., Magalhaes, A. M., Janot-Pacheco, E., Carciofi, A., Bourget, P., Schuhler, N., Kaiser, R.
Publikováno v:
SF2A-2021: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics. Eds.: A. Siebert, K. Baillié, E. Lagadec, N. Lagarde, J. Malzac, J.-B. Marquette, M. N'Diaye, J. Richard, O. Venot, 2021, pp.331-334
SF2A-2021: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics
SF2A-2021: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, A. Siebert, K. Baillié, E. Lagadec, N. Lagarde, J. Malzac, J.-B. Marquette, M. N'Diaye, J. Richard, O. Venot, Jun 2021, Online, France. pp.331-334
SF2A-2021: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics
SF2A-2021: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, A. Siebert, K. Baillié, E. Lagadec, N. Lagarde, J. Malzac, J.-B. Marquette, M. N'Diaye, J. Richard, O. Venot, Jun 2021, Online, France. pp.331-334
National audience; We present our project on the revival of intensity interferometry with modern photonic technologies, and more specifically with conventional optical telescopes. This original approach is complementary to the work currently done aim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e3750b5eb40d1ed660c832260859328