Canonical ensemble profile of a Fermi-Hubbard model treated as a double qubit chain

Authors

Vladimir Paat Villegas ⋅ PH National Institute of Physics, University of the Philippines Diliman and Physics Department, De La Salle University
Cristine Villagonzalo ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Through the Jordan-Wigner transformation, a Fermi-Hubbard (FH) optical lattice can be mapped onto a double qubit chain system (QS). In this study, the partition function and the Helmholtz free energy were calculated for a FH dimer and a double QS double well. The differences of the values of the two properties as functions of temperature were taken and are shown as saturating to a constant as the temperature increases. This implies that electrons can be emulated as qubits.

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Issue

2021: Proceedings of the 39th Samahang Pisika ng Pilipinas Physics Conference

Accelerating national progress via physics: From quantum to stellar and beyond
20-22 October 2021

Please visit the SPP2021 activity webpage for more information on this year's Physics Congress.

Article ID

SPP-2021-2B-03

Section

Atomic, Molecular, and Optical Physics

Published

2021-10-06

How to Cite

[1]

VP Villegas and C Villagonzalo, Canonical ensemble profile of a Fermi-Hubbard model treated as a double qubit chain, Proceedings of the Samahang Pisika ng Pilipinas 39, SPP-2021-2B-03 (2021). URL: https://proceedings.spp-online.org/article/view/SPP-2021-2B-03.