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Publication Information
Title Exploring thermal equilibria of the Fermi–Hubbard model with variational quantum algorithms
Abstract This study investigates the thermal properties of the repulsive Fermi-Hubbard model with chemical potential using variational quantum algorithms, crucial in comprehending particle behaviour within lattices at heightened temperatures in condensed matter systems. Conventional computational methods encounter challenges, especially in managing chemical potential, prompting exploration into Hamiltonian approaches. Despite the promise of quantum algorithms, their efficacy is hampered by coherence limitations when simulating extended imaginary time evolution sequences. To overcome these constraints, this research focuses on optimizing variational quantum algorithms to probe the thermal properties of the Fermi-Hubbard model. Physics-inspired circuit designs are tailored to alleviate coherence constraints, facilitating a more comprehensive exploration of materials at elevated temperatures. Our study demonstrates the potential of variational algorithms in simulating the thermal properties of the
Author(s) Jack Araz, Michael Spannowsky, Matt Wingate
Publication Date June 2024
Document Type Journal Article
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Theory & Comp Physics / THEORY CENTER / THEORY CENTER
Funding Source Nuclear Physics (NP)
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-THY-23-3968 OSTI Number: 2373079
LANL Number: arXiv:2312.09292 Other Number: DOE/OR/23177-7293
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Journal Article
Journal Name Physical Review A
Refereed No
Volume 109
Issue
Page(s) 062422
Attachments/Datasets/DOI Link
Document(s)
Fermi_Hubbard_Model-2.pdf (STI Document)
2312.09292v2.pdf (Accepted Manuscript)
DOI Link
Dataset(s) (none)
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