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Numerical Computation of Casimir Forces : Methods and Applications
Séminaire de Alexandre Patrick McCauley (MIT), en visite dans l’équipe Fluctuations Quantiques et Relativité
Vendredi 8 octobre 2010 à 11h dans la nouvelle salle de réunion du LKB jussieu, tour 23-13, 2e étage.
Abstract : I give an overview of the numerical methods developed by my research group to compute Casimir forces in arbitrary geometries without any uncontrolled approximation, including a discussion of finite- difference methods which compute the force via the stress tensor formulation, and boundary-element methods that rely on the scattering theory formulation. With these methods in hand, I discuss a range of applications that our group has been investigating. These include examining the competition between proximity effects and effective - medium properties in complex structures, achieving repulsive forces for an array of vacuum-separated needles above a corresponding array of holes, and systems in which the sign of the force can be tuned by either the dispersion of the materials or an artificially-induced anisotropy in the material surface.
Laboratoire Kastler Brossel
Quantum Fluctuations and Relativity Group
UPMC, case 74,
4 place Jussieu 75252 Paris Cedex 05
Post-scriptum :
ATTENTION : salle inhabituelle (l’ancienne bibliothèque du LKB jussieu étant devenue inutilisable), nous allons utiliser la nouvelle salle de réunion du LKB Jussieu, *tour 23-13, 2e étage *(dans les nouveaux locaux). Pour ceux qui ne savent pas s’y rendre, il y aura un départ groupé depuis la pyramide 5 minutes avant le début du séminaire.
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