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DOI: 10.1140/epjst/e2012-01529-y THE EUROPEAN PHYSICAL JOURNAL SPECIAL TOPICS Review Active Brownian Particles From Individual to Collective Stochastic Dynamics
, 2012
"... Abstract. We review theoretical models of individual motility as well as collective dynamics and pattern formation of active particles. We focus on simple models of active dynamics with a particular emphasis on nonlinear and stochastic dynamics of such self-propelled entities in the framework of sta ..."
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Abstract. We review theoretical models of individual motility as well as collective dynamics and pattern formation of active particles. We focus on simple models of active dynamics with a particular emphasis on nonlinear and stochastic dynamics of such self-propelled entities in the framework
Saskatoon By
"... In presenting this thesis in partial fulfilment of the requirements for a Postgraduate degree ..."
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In presenting this thesis in partial fulfilment of the requirements for a Postgraduate degree
TRANSITION VITREUSE ET TRANSITION DE BLOCAGE: LES SOLIDES DÉSORDONNÉS ENTRE CHAMP MOYEN ET DIMENSION FINIE.
, 2011
"... Cette thèse est consacrée à l’étude de la transition liquide/solide amorphe. Cette transition se retrouve dans des systèmes thermiques (par exemple dans les verres moléculaires) ou athermiques (avec entre autres les milieux granulaires), à l’équilibre thermodynamique ou hors équilibre. Nous montrons ..."
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aspect champ moyen contrôlable. Cela nous permet de suivre l’évolution de la transition vitreuse dynamique entre le champ moyen et la dimension finie. Nous montrons également que ce modèle réalise en champ moyen une approximation de la dynamique comparable, mais pas équivalente, à la théorie de couplage
3esis Supervisor Accepted by
, 2005
"... in partial ful2llment of the requirements for the degree of ..."
Accepted by....
, 2010
"... In this thesis, two sets of experimental studies in bosonic and fermionic gases are described. In the first part of the thesis, itinerant ferromagnetism was studied in a strongly interacting Fermi gas of ultracold atoms. The observation of nonmonotonic behavior of lifetime, kinetic energy, and size ..."
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In this thesis, two sets of experimental studies in bosonic and fermionic gases are described. In the first part of the thesis, itinerant ferromagnetism was studied in a strongly interacting Fermi gas of ultracold atoms. The observation of nonmonotonic behavior of lifetime, kinetic energy, and size for increasing repulsive interactions pro-vides strong evidence for a phase transition to a ferromagnetic state. Our observations imply that itinerant ferromagnetism of delocalized fermions is possible without lattice and band structure, and our data validate the most basic model for ferromagnetism introduced by Stoner. In the second part of the thesis, the coherence properties of a Bose-Einstein con-densate (BEC) was studied in a radio frequency induced double-well potential imple-mented on a microfabricated atom chip. We observed phase coherence between the separated condensates for times up to 200 ms after splitting, a factor of 10 longer than the phase diffusion time expected for a coherent state for our experimental con-ditions. The enhanced coherence time is attributed to number squeezing of the initial
ative Commons Attribution Non-Commercial No Derivatives licence. Researchers
"... I herewith certify that all material in this dissertation which is not my own work has been properly acknowledged. ..."
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I herewith certify that all material in this dissertation which is not my own work has been properly acknowledged.
TRANSITION VITREUSE ET TRANSITION DE BLOCAGE:
, 2011
"... HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte p ..."
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HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et a ̀ la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.