Subject: [Depfis] seminario - hoy 14hs

From: Francisco Diego Mazzitelli <[email-masked]>
Date: Tue, 16 Dec 2003 10:50:58 -0300

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The Casimir force between rough metallic plates 

Paulo Maia Neto - UFRJ

Martes 16 de diciembre - 14hs - Aula Federman 

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The Casimir force between two metallic plates is affected by their roughness 
state. This effect is usually calculated through the so-called `proximity 
force approximation' which is only valid for small enough wavevectors in the 
spectrum of the roughness profile. We introduce here a more general 
description with a wavevector-dependent roughness sensitivity of the Casimir 
effect. Since the proximity force approximation underestimates the effect, a 
measurement of the roughness spectrum is needed to achieve the desired level 
of accuracy in the theory-experiment comparison. 

-- 
Francisco Diego Mazzitelli
Departamento de Fisica - FCEyN - Universidad de Buenos Aires
Ciudad Universitaria - Pabellon 1 - 1428 Buenos Aires - ARGENTINA
e-mail: [email-masked]
Phone: 54 11 4576 3353
Fax:   54 11 4576 3357