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DTSTART:19700329T010000
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CATEGORIES:Isaac Newton Institute Seminar Series
SUMMARY:How storm develops as the wind blows - Gregory Fal
 kovich (Weizmann Institute of Science)
DTSTART;TZID=Europe/London:20240325T144000
DTEND;TZID=Europe/London:20240325T153000
UID:TALK208618AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/208618
DESCRIPTION:I will describe an attempt to describe wave turbul
 ence using the methods of quantum field theory. We
  consider waves that interact via four-wave scatte
 ring (such as sea waves\, plasma waves\, spin wave
 s\, and many others). By summing the series of the
  most UV-divergent terms in the perturbation theor
 y\, we show that the true dimensionless coupling i
 s different from the naive estimate\, and find tha
 t the effective interaction either decays or grows
  explosively with the cascade extent\, depending o
 n the sign of the new coupling. The explosive grow
 th possibly signals the appearance of a multi-wave
  bound state (solitons\, shocks\, cusps) similar t
 o confinement in quantum chromodynamics. We find t
 hat IR divergence in the effective coupling could 
 be responsible for an anomalous scaling in wave tu
 rbulence.
LOCATION:Seminar Room 1\, Newton Institute
CONTACT:
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