Casimir manipulations: The orientation dependence of fluctuation-induced forces

Abstract

The Casimir interaction between two objects, or between an object and a plane, depends on their relative orientations. We make these angular dependences explicit by considering prolate or oblate spheroids. The variation with orientation is calculated exactly at asymptotically large distances for the electromagnetic field, and at arbitrary separations for a scalar field. For a spheroid in front of a mirror, the leading term is orientation independent, and we find the optimal orientation from computations at higher order.

4 pages, 3 figures

References in corpus (4)

• Casimir forces between arbitrary compact objects
• Casimir forces in a T operator approach
• Casimir Forces between Compact Objects: I. The Scalar Case
• Fluctuation induced quantum interactions between compact objects and a plane mirror

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