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VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Open quantum dynamics with nonlinearly realized symmetries
DTSTART:20250120T140000
DTEND:20250120T150000
DTSTAMP:20260408T084045Z
UID:34dc3c880e7e936da6ada5d7d809a93b773696b5a388a0de55f53dfc
CATEGORIES:Conferences - Seminars
DESCRIPTION:Jury Radkovski\nIn the context of effective description of dis
 sipative phenomena\, I will consider an open mechanical system with degree
 s of freedom belonging to a group\, e.g. rigid body in a thermal bath. In 
 the first part of the talk\, I will introduce the effective (in-in) action
  that depends only on the system's degrees of freedom without explicit dep
 endence on the bath. Its structure will be fixed by the time reversal and 
 the group symmetry. I will discuss the phenomenologically important limits
  of linear response and of ohmic dissipation and the constraints posed by 
 these limits on the form of the effective action. I will illustrate everyt
 hing on a particular example. In the second part of the talk\, for the cas
 e of ohmic dissipation\, I will introduce the Universal bath: a model with
  an in-out action in one extra dimension that reproduces the quantum dissi
 pative mechanics of the system\, once you integrate out the extra dimensio
 n. Finally\, I will discuss the generalizations and the potential uses of 
 both the effective in-in action and the Universal bath.
LOCATION:BSP 727 https://plan.epfl.ch/?room==BSP%20727 https://epfl.zoom.u
 s/j/69362612859
STATUS:CONFIRMED
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