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VERSION:2.0
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X-WR-TIMEZONE;VALUE=TEXT:Europe/Zurich
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DTSTAMP:20261022T040958Z
UID:a9fb58b7-7691-4358-ac92-b1423969b09f
DTSTART:20261029T110000
DTEND:20261029T113000
DESCRIPTION:We introduce a framework for describing the real-time dynamics 
 of quantum impurity models out of equilibrium which is based on the influe
 nce matrix approach. By replacing the dynamical map of a large fermionic q
 uantum environment with an effective semi-group influence matrix (SGIM) wh
 ich acts on a reduced auxiliary space\, we overcome the limitations of pre
 vious proposals\, achieving high accuracy at long evolution times\, which 
 we demonstrate by computing the spectral function of the single impurity A
 nderson model. Once the effective compressed baths are obtained\, they can
  then be used as building blocks\, allowing the study of more complex mode
 ls such as the two impurity Anderson model. At a coupling strength between
  the two dots comparable to the Kondo scale this model is known to host a 
 two channel Kondo like non-fermi liquid point. We study this critical poin
 t by considering dynamical observables such as the relaxation time after a
  quench and the work exerted on a ramp through the critical point exhibiti
 ng Kibble Zurek like physics. Finally I'll discuss applications of this me
 thod to non-equilibrium dynamical mean field theory.
LOCATION:ETH Zürich\, Hönggerberg HIT F 13
ORGANIZER:Michael Sonner
SUMMARY:Multibath Influence Matrices: Universal Scaling from Real-Time Dyna
 mics
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