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UID:20260513T223146EDT-1658fumwVm@132.216.98.100
DTSTAMP:20260514T023146Z
DESCRIPTION:Title: Superdiffusion for Brownian motion with random drift.\n
 \nAbstract: A Brownian particle subject to a random\, divergence-free drif
 t will have enhanced diffusion. The correlation structure of the drift det
 ermines the strength of the diffusion and there is a critical threshold\, 
 bordering the diffusive and superdiffusive regimes. Physicists have long e
 xpected logarithmic-type superdiffusivity at this threshold\, and recently
  some progress in this direction has been made by mathematicians.\n\nI wil
 l discuss joint work with Scott Armstrong and Tuomo Kuusi in which we iden
 tify and obtain the sharp rate of superdiffusivity. We also establish a qu
 enched invariance principle under this scaling. Our proof is a quantitativ
 e renormalization group argument made rigorous by ideas from stochastic ho
 mogenization.\n\nZoom link: https://mcgill.zoom.us/j/88913958273?pwd=cDBIW
 GF3bmZSUmRzMFdLNGR3V2FXUT09\n
DTSTART:20240328T153000Z
DTEND:20240328T163000Z
LOCATION:Room 920\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue 
 Sherbrooke Ouest
SUMMARY:Ahmed Bou Rabee (NYU)
URL:https://www.mcgill.ca/mathstat/channels/event/ahmed-bou-rabee-nyu-35634
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