25–30 May 2025
Daejeon Convention Center (DCC)
Asia/Seoul timezone

Lattice calculation of the pairing gap of a unitary fermi gas

30 May 2025, 11:25
15m
Room 5: 1F #102 (DCC)

Room 5: 1F #102

DCC

Contributed Oral Presentation Hot and Dense Nuclear Matter Parallel Session

Speaker

Jong-Wan Lee (Institute for Basic Science (IBS))

Description

The inner crust of a neutron star can be approximated by a dilute gas of strongly interacting non-relativistic two-component fermions, which is characterized by a large negative scattering length and small interaction range. The extreme limit for which both the inverse of the scattering length and the interaction range become zero corresponds to a unitary fermi gas which can be realized from ultra-cold atom experiments in the laboratory. We perform numerical calculations of unitary fermions by employing lattice Monte-Carlo method in the canonical approach. Of particular interest is in the pairing gap, a measure of fermion pairing correlations. We report our results for the pairing gap at zero temperature and critically assess them by comparing to both theoretical and experimental results in the literature.

Primary author

Jong-Wan Lee (Institute for Basic Science (IBS))

Presentation materials