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DTSTART;TZID=Europe/Berlin:20241209T143000
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DTSTAMP:20260525T164608
CREATED:20241206T161039Z
LAST-MODIFIED:20241206T161039Z
UID:10002210-1733754600-1733758200@qvls.de
SUMMARY:Non-linear media in weakly curved spacetime (via Zoom)
DESCRIPTION:Seminar by Dr. Alessio Belenchia from DLR (German Aerospace Center) Institute of Quantum Technologies\, Ulm. \nThat light propagating in a gravitational field gets frequency-shifted is one of the basic consequences of any metric theory of gravity rooted in the equivalence principle. At the same time\, also a time-dependent material’s refractive index can frequency-shift light propagating in it. \nIn this talk\, we analyse light propagation in non-linear media in curved spacetime and the presence of a moving refractive index perturbation. We show that this can lead to a gravity-dependent blueshift. The predicted blueshift surpasses the gravitational redshift even if the medium is considered to be perfectly stiff. In realistic scenarios\, strong frequency shifts arise due to the deformation of the dielectric medium and the corresponding photoelastic change of refractive index. \nThe talk will be streamed online via Zoom \nhttps://uni-bremen.zoom.us/j/4651981280 \nID: 465 198 1280 \nPW: gravi
URL:https://qvls.de/event/non-linear-media-in-weakly-curved-spacetime-via-zoom/
LOCATION:Niedersachsen
CATEGORIES:Bildung
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