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TZID:Europe/Vienna
BEGIN:DAYLIGHT
DTSTART:20260329T030000
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DTSTART:20251026T020000
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BEGIN:VEVENT
DTSTAMP:20260415T110132Z
UID:6687bf08e3e62490445508@ist.ac.at
DTSTART:20260317T161500
DTEND:20260317T171500
DESCRIPTION:Speaker: Diwakar Naidu\nhosted by Robert Seiringer\nAbstract: I
  will talk about the momentum distribution of an interacting Fermi gas on 
 a three dimensional torus in mean field regime in a trial state that repro
 duces the Gell-Mann-Brueckner prediction for the correlation energy for Co
 ulomb potential. We show that the momentum distribution is a step function
  corrected by the random phase approximation as predicted by Bohm-Pines fo
 r a class of potentials including the Coulomb potential. The key tool for 
 deriving the distribution is a rigorous bosonization method. The expressio
 n for the momentum distribution contains the contributions of collective e
 xcitations above the Fermi-surface going beyond the precision of Hartree-F
 ock theory. This improves the result by Benedikter-Lill by being valid a l
 arger class of potentials and for momenta closer to the Fermi surface. 
LOCATION:Office Bldg West / Ground floor / Heinzel Seminar Room (I21.EG.101
 )\, ISTA
ORGANIZER:boosthui@ist.ac.at
SUMMARY:Diwakar Naidu: Momentum distribution of a Fermi gas with Coulomb in
 teraction in Random Phase approximation
URL:https://talks-calendar.ista.ac.at/events/6289
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