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DTSTAMP:20260404T145706Z
UID:5c62953c6185c715734269@ist.ac.at
DTSTART:20190528T110000
DTEND:20190528T120000
DESCRIPTION:Speaker: Sanchar Sharma\nhosted by Mikhail Lemeshko\nAbstract: 
 YIG (Yttrium Iron Garnet) is a material known for its excellent magnetic q
 uality and magnons therein are expected to have long coherence time. But s
 tudies on quantum properties of magnons are scarce due to lack of a cohere
 nt interface to manipulate them. We theoretically argue that optical (infr
 ared or visible) photons couple coherently and sufficiently strongly with 
 magnons. We derive an upper limit of the coupling for a given material and
  discuss a geometry which nearly achieves that limit. We show that the the
 rmal fluctuations of the magnons can be suppressed optically\, analogous t
 o laser cooling of atoms. Additionally\, we can induce a large coherent co
 mponent of the magnons\, leading to a mesoscopic Bose-Einstein condensate.
LOCATION:Mondi Seminar Room 2\, Central Building\, ISTA
ORGANIZER:cpetz@ist.ac.at
SUMMARY:Sanchar Sharma: Optical manipulation of ferromagnet
URL:https://talks-calendar.ista.ac.at/events/1973
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