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Event

Fluctuation-induced propulsion forces from nonreciprocal media

Title of the event Fluctuation-induced propulsion forces from nonreciprocal media
Series MPIDS Colloquium
Organizer Living Matter Physics
Speaker Prof. Dr. Matthias Krüger
Speaker institution Georg-August University Göttingen
Type of event Seminar
Category Forschung
Registration required Nein
Details Under what conditions is it possible to extract mechanical work from the quantum and thermal fluctuations of the electromagnetic field? Arguments based on symmetry and thermodynamics may suggest the existence of a ratchetlike lateral Casimir force between two plates at different temperatures and with broken inversion symmetry. We find that this is not sufficient, and at least one plate must be made of nonreciprocal material. This setup operates as a heat engine by transforming heat radiation into mechanical force. The properties of such heat engine, especially as regards the distance between the plates, and the optimal operation speed, are analyzed.
Date Start: 19.01.2022, 14:15 Uhr
Ende: 19.01.2022 , 15:15 Uhr
Location Max-Planck-Institut für Dynamik und Selbstorganisation (MPIDS) (Am Faßberg 17)
Video conference at www.zoom.us Meeting ID: 959 2774 3389 Passcode: 651129
Contact 0551/5176-101
golestanian-office@ds.mpg.de
File attachment 220119_colloquium_krueger.pdf