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Erlangen 2018 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 31: Quantum Effects (QED)

Q 31.3: Talk

Tuesday, March 6, 2018, 14:30–14:45, K 1.013

Tailoring Quantum Friction with Superlattice Structures — •Marty Oelschläger1,2, Francesco Intravaia2, and Kurt Busch1,21Humboldt-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

Quantum friction is a drag force mediated by the electromagnetic vacuum fluctuations acting on an object in relative motion with respect to another. The characteristics of this interaction depend on the physical properties of the bodies as well as their details of the nano-structures. Here, we address two connected aspects of this non-equilibrium dispersion force: its strength and its behavior as a function of the kinematic and geometrical parameters that characterize the system. Specifically, we investigate the electromagnetic response of a superlattice structure, focusing on the low frequency plasmonic properties of the system and on the corresponding electromagnetic density of states. Since quantum friction strongly depends on these features, by tailoring the properties of the material we can control the drag force.

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