Ground States of Heisenberg Spin Clusters from a Cluster-Based Projected Hartree–Fock Approach
Recent work on approximating ground states of Heisenberg spin clusters by projected Hartree–Fock theory (PHF) is extended to a cluster-based ansatz (cPHF). Whereas PHF variationally optimizes a site–spin product state for the restoration of spin- and point-group symmetry, cPHF groups sites into disc...
Main Authors: | Shadan Ghassemi Tabrizi, Carlos A. Jiménez-Hoyos |
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Format: | Article |
Language: | English |
Published: |
MDPI AG
2023-02-01
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Series: | Condensed Matter |
Subjects: | |
Online Access: | https://www.mdpi.com/2410-3896/8/1/18 |
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