Journal article
Uncovering Relationships between the Electronic Self-Energy and Coupled-Cluster Doubles Theory
- Abstract:
- We derive the coupled-cluster doubles (CCD) amplitude equations by introduction of the particle-hole-time decoupled electronic self-energy. The resulting analysis leads to an expression for the ground-state correlation energy that is exactly of the form obtained in coupled-cluster doubles theory. We demonstrate the relationship to the ionization potential/electron affinity equation-of-motion coupled-cluster doubles (IP/EA-EOM-CCD) eigenvalue problem by coupling the reverse-time self-energy contributions while maintaining particle-hole separability. The formal relationships established are demonstrated by exact solution of the Hubbard dimer.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 4.1MB, Terms of use)
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- Publisher copy:
- 10.1021/acs.jpca.5c03750
Authors
- Publisher:
- American Chemical Society
- Journal:
- The Journal of Physical Chemistry A More from this journal
- Volume:
- 129
- Issue:
- 37
- Pages:
- 8689-8698
- Publication date:
- 2025-09-10
- Acceptance date:
- 2025-08-25
- DOI:
- EISSN:
-
1520-5215
- ISSN:
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1089-5639
- Language:
-
English
- Pubs id:
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2301254
- Local pid:
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pubs:2301254
- Source identifiers:
-
3296872
- Deposit date:
-
2025-09-19
- ARK identifier:
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Terms of use
- Copyright date:
- 2025
- Notes:
- This work is related to the thesis Unification and development of quantum field theory methods in many-particle physics.
- Licence:
- CC Attribution (CC BY)
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