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Comment on "Numerical Evidence Falsifying Finite-Temperature Many-Body Perturbation Theory"

White, Alec F. and Chan, Garnet Kin-Lic (2018) Comment on "Numerical Evidence Falsifying Finite-Temperature Many-Body Perturbation Theory". , Pasadena, CA. (Submitted) http://resolver.caltech.edu/CaltechAUTHORS:20181112-075323431

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Abstract

In this comment we address the preprint of Jha and Hirata (arXiv:1809.10316 [physics.chem-ph]) which claims "Numerical Evidence Falsifying Finite-Temperature Many-Body Perturbation Theory." We agree that finite difference differentiation of the exact grand potential is the correct way to verify the terms in the perturbation expansion. However, it is our suspicion that theoretical errors, uncontrolled numerical errors, and/or errors in their implementation have led Jha and Hirata to incorrectly conclude that finite temperature perturbation theory is incorrect. We show numerical evidence from finite difference differentiation of the grand potential that supports the correctness of finite-temperature perturbation theory.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
https://arxiv.org/abs/1810.03653arXivDiscussion Paper
ORCID:
AuthorORCID
Chan, Garnet Kin-Lic0000-0001-8009-6038
Record Number:CaltechAUTHORS:20181112-075323431
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20181112-075323431
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:90824
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:13 Nov 2018 17:37
Last Modified:13 Nov 2018 17:37

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