General solution to the Kohn–Luttinger nonconvergence problem
Journal Article
·
· Chemical Physics Letters
- Univ. of Illinois at Urbana-Champaign, IL (United States); University of Illinois at Urbana-Champaign
A simple, but general solution is proposed for the Kohn–Luttinger problem, i.e., the nonconvergence of the finite-temperature many-body perturbation theory with its zero-temperature counterpart as temperature is lowered to zero under some circumstances. How this nonconvergence can be avoided by altering the reference wave function is illustrated numerically by using up to the fifth order of the perturbation theory.
- Research Organization:
- Univ. of Illinois at Urbana-Champaign, IL (United States)
- Sponsoring Organization:
- Scalable Predictive Methods for Excitations and Correlated Phenomena (SPEC); USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
- Grant/Contract Number:
- SC0006028
- OSTI ID:
- 1866594
- Alternate ID(s):
- OSTI ID: 1866860
- Journal Information:
- Chemical Physics Letters, Journal Name: Chemical Physics Letters Vol. 800; ISSN 0009-2614
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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