14–19 Jun 2010
Villasimius, Sardinia
Europe/Rome timezone

Lattice calculation for unitary fermions in a finite box

18 Jun 2010, 17:40
20m
Room2 (Villasimius, Sardinia)

Room2

Villasimius, Sardinia

Tanka Village
Nonzero temperature and density Parallel 52: Nonzero temperature and density

Speaker

JONG-WAN LEE (University of Washington)

Description

A fundamental constant in systems of unitary fermions is the so-called Bertsch parameter, the ratio of the ground state energy for spin paired unitary fermions to that for free fermions at the same density. I discuss how we computed this parameter as well as the pairing gap using a recently developed lattice construction for unitary fermions, by measuring correlation functions for up to 38 fermions in a finite box. Our calculation illustrates interesting issues facing the study of many-body states on the lattice, which may eventually be confronted in QCD calculations as well.
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Primary author

JONG-WAN LEE (University of Washington)

Co-authors

Ms Amy N. Nicholson (University of Washington) Dr David B. Kaplan (University of Washington) Dr Michael G. Endres (Colombia University)

Presentation materials