An analysis of variational wave function for the pairing problem in strongly correlated system
Quantum Gases
2018-06-15 v2 Strongly Correlated Electrons
Superconductivity
Nuclear Theory
Abstract
We report a theoretical analysis of variational wave functions for the BCS pairing problem. Starting with a Jastrow-Feenberg (or, in a more recent language "fixed-node") wave function for the superfluid state, we develop the full optimized Fermi-Hypernetted Chain (FHNC-EL) equations which sum a local approximation of the parquet-diagrams. Close examination of the procedure reveals that it is essential to go beyond the usual Jastrow-Feenberg approximation to guarantee the correct stability range.
Cite
@article{arxiv.1801.10196,
title = {An analysis of variational wave function for the pairing problem in strongly correlated system},
author = {Hsuan-Hao Fan and E. Krotscheck},
journal= {arXiv preprint arXiv:1801.10196},
year = {2018}
}
Comments
12 pages, 3 figures