Zobrazeno 1 - 10 of 154 pro vyhledávání: '"V, Brunaud"'
1
Akademický článek
Observation and control of quantized scattering halos
Autor: G Chatelain, N Dupont, M Arnal, V Brunaud, J Billy, B Peaudecerf, P Schlagheck, D Guéry-Odelin
Publikováno v: New Journal of Physics, Vol 22, Iss 12, p 123032 (2020)
We investigate the production of s-wave scattering halos from collisions between the momentum components of a Bose–Einstein condensate released from an optical lattice. The lattice periodicity translates in a momentum comb responsible for the quant
Externí odkaz: https://doaj.org/article/52033c2dfdad42feb82bdadda37f9f45
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2
Akademický článek
Phase transition kinetics for a Bose Einstein condensate in a periodically driven band system
Autor: E Michon, C Cabrera-Gutiérrez, A Fortun, M Berger, M Arnal, V Brunaud, J Billy, C Petitjean, P Schlagheck, D Guéry-Odelin
Publikováno v: New Journal of Physics, Vol 20, Iss 5, p 053035 (2018)
The dynamical transition of an atomic Bose–Einstein condensate from a spatially periodic state to a staggered state with alternating sign in its wavefunction is experimentally studied using a one-dimensional phase modulated optical lattice. We obse
Externí odkaz: https://doaj.org/article/38ebfb87e67c4244b86d6bf4de1312de
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3
Observation and control of quantized scattering halos
Autor: B. Peaudecerf, Juliette Billy, V. Brunaud, Peter Schlagheck, G. Chatelain, M. Arnal, N. Dupont, David Guéry-Odelin
Publikováno v: New Journal of Physics
New Journal of Physics, Institute of Physics: Open Access Journals, 2020, 22 (12), pp.123032. ⟨10.1088/1367-2630/abcf6a⟩
We investigate the production of s-wave scattering halos from collisions between the momentum components of a Bose-Einstein condensate released from an optical lattice. The lattice periodicity translates in a momentum comb responsible for the quantiz
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9809166f6cf5fffbf22c580b587872dd
http://arxiv.org/abs/2009.09923
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4
Resonant excitations of a Bose Einstein condensate in an optical lattice
Autor: V. Brunaud, Juliette Billy, C. Cabrera-Gutiérrez, David Guéry-Odelin, G. Chatelain, Tomasz Kawalec, E. Michon, M. Arnal
Publikováno v: The European Physical Journal D : Atomic, molecular, optical and plasma physics
The European Physical Journal D : Atomic, molecular, optical and plasma physics, EDP Sciences, 2019, 73, pp.170. ⟨10.1140/epjd/e2019-90672-4⟩
We investigate experimentally a Bose Einstein condensate placed in a 1D optical lattice whose phase or amplitude is modulated in a frequency range resonant with the first bands of the band structure. More precisely, we study the effect of the strengt
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce2f331912d390f1cc1adfa2af55c156
https://hal.archives-ouvertes.fr/hal-02291218
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5
Evidence for cooling in an optical lattice by amplitude modulation
Autor: E. Michon, M. Arnal, V. Brunaud, Pierrick Cheiney, G. Chatelain, C. Cabrera-Gutiérrez, David Guéry-Odelin, Juliette Billy
Publikováno v: Physical Review A
Physical Review A, American Physical Society 2019, 100 (1), pp.013416. ⟨10.1103/PhysRevA.100.013416⟩
We report on a generic cooling technique for atoms trapped in optical lattices. It consists in modulating the lattice depth with a proper frequency sweeping. This filtering technique removes the most energetic atoms and provides, with the onset of th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::583426cc309746a9789e4581be33d921
https://hal.archives-ouvertes.fr/hal-02291685
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6
Akademický článek
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7
Les nouvelles voies de recherche thérapeutique dans la sclérose latérale amyotrophique (SLA)
Autor: Caroline Moreau, V. Brunaud-Danel, Luc Defebvre, David Devos
Publikováno v: Pratique Neurologique - FMC. 7:9-15
Resume La sclerose laterale amyotrophique est une maladie neurodegenerative de l’adulte definie par la demonstration clinique et a l’electromyogramme d’une perte progressive et irreversible des motoneurones centraux et peripheriques. Le delai e
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::85be4d48f4e2943c4e5a1d5d0a254aa3
https://doi.org/10.1016/j.praneu.2015.12.002
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9
Robust calibration of an optical-lattice depth based on a phase shift
Autor: David Guéry-Odelin, M. Arnal, Tomasz Kawalec, A. Fortun, E. Michon, Juliette Billy, V. Brunaud, C. Cabrera-Gutiérrez
Publikováno v: Physical Review A
Physical Review A, American Physical Society, 2018, 97 (4), pp.043617. ⟨10.1103/PhysRevA.97.043617⟩
We report on a new method to calibrate the depth of an optical lattice. It consists in triggering the intrasite dipole mode of the cloud by a sudden phase shift. The corresponding oscillatory motion is directly related to the intraband frequencies on
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54a965e266aab8f21acd273d7ded4ac4
https://hal.archives-ouvertes.fr/hal-01787234
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10
Comment prendre en charge un malade atteint de SLA ?
Autor: Caroline Moreau, V. Brunaud-Danel, Thierry Perez, Alain Destée, V. Tiffreau, David Devos, Luc Defebvre, N. Danel-Buhl
Publikováno v: Pratique Neurologique - FMC. 6:13-18
Resume La sclerose laterale amyotrophique (SLA) est une maladie neurodegenerative incurable, grave (mediane de survie de 24 mois apres diagnostic), caracterisee par un dysfonctionnement rapidement progressif des motoneurones centraux et peripheriques
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea38b8e345f5234a2e7253c5954b4cdf
https://doi.org/10.1016/j.praneu.2014.12.002
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