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SUMMARY:Low-energy physics of a superfluid vortex lattice
DTSTART:20181112T140000
DTEND:20181112T150000
DTSTAMP:20260513T144055Z
UID:201cce57e30f800ac8550d654d08cfabc940c012ef2d51aa5d0ce868
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Sergej Moroz\nSuperfluidity is one of the most intriguing q
 uantum phenomena that emerges at temperatures close to absolute zero. Vort
 ices with quantized circulation are the hallmark of superfluidity and are 
 created under external rotation. If the number of vortices is much smaller
  than the number of particles\, vortices arrange themselves in a triangula
 r lattice that exhibits intriguing collective dynamics. Quantum vortex cry
 stals in superfluids and superconductors have been one of the exciting ave
 nues of research for many decades. In this talk I will introduce an effect
 ive field theory built from low-energy degrees of freedom which captures u
 niversal properties of vortex lattices in bosonic superfluids. I will pres
 ent our results for current and stress tensor Hall responses and will prov
 ide some arguments that the Hall viscosity of a quantum vortex crystal van
 ishes at zero frequency and momentum. In the end of the talk\, I will desc
 ribe new directions that we are currently exploring using this effective f
 ield theory.
LOCATION:Cubotron
STATUS:CONFIRMED
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