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TZID:Europe/Vienna
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DTSTART:20260329T030000
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DTSTART:20251026T020000
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DTSTAMP:20260308T202651Z
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 
 athree dimensional torus in mean field regime in a trial state that reprod
 ucesthe Gell-Mann-Brueckner prediction for the correlation energy for Coul
 omb potential. We show that the momentum distribution is a step function c
 orrectedby the random phase approximation as predicted by Bohm-Pines for a
  classof potentials including the Coulomb potential. The key tool for deri
 ving thedistribution is a rigorous bosonization method. The expression for
  the momentum distribution contains the contributions of collective excita
 tions above theFermi-surface going beyond the precision of Hartree-Fock th
 eory. This improvesthe result by Benedikter-Lill by being valid a larger c
 lass of potentials and formomenta closer to the Fermi surface.References[B
 L24] Niels Benedikter and Sascha Lill. Momentum distribution of a fermi ga
 s inthe random phase approximation\, 202
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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