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- Title
Time‐dependent coupled‐cluster theory.
- Authors
Sverdrup Ofstad, Benedicte; Aurbakken, Einar; Sigmundson Schøyen, Øyvind; Kristiansen, Håkon Emil; Kvaal, Simen; Pedersen, Thomas Bondo
- Abstract
Recent years have witnessed an increasing interest in time‐dependent coupled‐cluster (TDCC) theory for simulating laser‐driven electronic dynamics in atoms and molecules, and for simulating molecular vibrational dynamics. Starting from the time‐dependent bivariational principle, we review different flavors of single‐reference TDCC theory with either orthonormal static, orthonormal time‐dependent, or biorthonormal time‐dependent spin orbitals. The time‐dependent extension of equation‐of‐motion coupled‐cluster theory is also discussed, along with the applications of TDCC methods to the calculation of linear absorption spectra, linear and low‐order nonlinear response functions, highly nonlinear high harmonic generation spectra and ionization dynamics. In addition, the role of TDCC theory in finite‐temperature many‐body quantum mechanics is briefly described along with a few other application areas. This article is categorized under:Electronic Structure Theory > Ab Initio Electronic Structure MethodsTheoretical and Physical Chemistry > SpectroscopySoftware > Simulation Methods
- Subjects
COUPLED-cluster theory; PHYSICAL &; theoretical chemistry; HARMONIC generation; NONLINEAR optical spectroscopy; QUANTUM mechanics; ABSORPTION spectra
- Publication
WIREs: Computational Molecular Science, 2023, Vol 13, Issue 5, p1
- ISSN
1759-0876
- Publication type
Article
- DOI
10.1002/wcms.1666