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Q: Fachverband Quantenoptik und Photonik
Q 39: Posters: Quantum Optics and Photonics III
Q 39.60: Poster
Mittwoch, 11. März 2020, 16:30–18:30, Empore Lichthof
Numerical calculation of Casimir interactions in complex geometries — •Bettina Beverungen1, Philip Kristensen1, Francesco Intravaia1, and Kurt Busch1,2 — 1Humboldt-Universität zu Berlin, Institut für Physik, AG Theoretische Optik & Photonik, Newtonstr. 15, 12489 Berlin, Germany — 2Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, Max-Born-Str. 2A, 12489 Berlin, Germany
The Casimir effect is responsible for a force between nonmagnetic, electrically neutral objects arising from the quantum fluctuations of the electromagnetic field. This interaction has received increasing attention from both theoretical and experimental side, in particular for its relevance in the design of small-scale devices such as nano- or micro electro-mechanical systems and atom-chips. To fully explore the space of possible designs, it is imperative to develop methods to evaluate Casimir forces for non-trivial geometries and materials allowing for high flexibility and precision. Here, we discuss a time-domain finite-element-based numerical scheme employing the discontinuous Galerkin time-domain (DGTD) method. This calculation method enables high-accuracy evaluation of Casimir- and Casimir-Polder forces in complex geometries and for a broad class of material models.