Free energy in a spin transport among particles in a Fermi-Hubbard optical lattice

Authors

Vladimir Paat Villegas ⋅ PH National Institute of Physics, University of the Philippines Diliman
Cristine De Los Reyes Villagonzalo ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

The Fermi-Hubbard model investigates the dynamics of fermions confined in a one-dimensional (1D) optical lattice. In turn, the lattice is confined to a heat bath consisting of a fermionic quantum gas. Here, we use the path integral method to investigate the effects of the coupling at zero temperature and determine the five processes among bath particles which facilitate spin transport among optical lattice particles. Furthermore, we compute for the free energy per lattice site during such process.

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Issue

2020: Proceedings of the 38th Samahang Pisika ng Pilipinas Physics Conference

Shedding light on the pandemic through the lens of physics
Pagtanglaw sa pandemya sa lente ng pisika
19-23 October 2020

This is the first fully online SPP Physics Conference. Please visit the SPP2020 activity webpage for more information on this year's Physics Congress.

Article ID

SPP-2020-5C-03

Section

Condensed Matter Physics and Materials Science

Published

2020-10-19

How to Cite

[1]

VP Villegas and CDLR Villagonzalo, Free energy in a spin transport among particles in a Fermi-Hubbard optical lattice, Proceedings of the Samahang Pisika ng Pilipinas 38, SPP-2020-5C-03 (2020). URL: https://proceedings.spp-online.org/article/view/SPP-2020-5C-03.