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SUMMARY:Dynamical Properties in interacting many-body systems
DTSTART:20260727T090000Z
DTEND:20260727T100000Z
DTSTAMP:20260802T185300Z
UID:indico-event-9399@scitalks.tifr.res.in
DESCRIPTION:Speakers: Sabyasachi Chowdhury (TIFR)\n\nIn this talk\, I will
  present four studies carried out for my PhD project about dynamical fluct
 uations in many-body systems. First\, I will present a generalization of a
  well-known fluctuation theorem to the joint probability distribution of c
 urrents at different times\, and discuss its three consequences: an extens
 ion of the Green-Kubo relation for multi-time statistics\, the emergence o
 f fractional Brownian motion in the two-time current correlation\, and the
  full multi-time statistics for the symmetric simple exclusion process (SS
 EP) under equilibrium initial conditions. I will also compute the two-time
  correlation for the non-equilibrium SSEP. Second\, I will discuss a model
  of population dynamics whose long-time behavior is captured by the noisy 
 Fisher-KPP equation describing wavefront propagation between competing spe
 cies. I will discuss exact solvability of the symmetric case revealing a m
 apping to the Lieb-Liniger model\, giving access to n-point correlations. 
 Third\, I will discuss worm statistics in the close-packed dimer model on 
 square and honeycomb lattices\, finding a dynamic exponent greater than 2\
 , indicating subdiffusive motion. Fourth\, I will study the close-packed d
 imer model on the star lattice\, which maps to square and triangular latti
 ce Ising magnets under two fugacity sets\, and characterize its equilibriu
 m properties at criticality. All these studies reveal emergent dynamical c
 orrelations in non-equilibrium conditions.\n\nhttps://scitalks.tifr.res.in
 /event/9399/
LOCATION:A304 and on Zoom
URL:https://scitalks.tifr.res.in/event/9399/
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