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We report and characterize ground-state and excited-state potential energy profiles using a variety of electronic structure methods along a loop lying on the branching plane associated with a conical intersection (CI) of a reduced retinal model, the penta-2,4-dieniminium cation (PSB3). Whereas the performance of the equation-of-motion coupled-cluster,… (More)

- Miquel Huix-Rotllant, Andrei Ipatov, Angel Rubio, Mark E Casida, N T Maitra, F Zhang +9 others
- 2011

Keywords: Time-dependent density-functional theory Exchange-correlation kernel Adiabatic approximation Frequency dependence Many-body perturbation theory Excited states Organic chromophores a b s t r a c t Almost all time-dependent density-functional theory (TDDFT) calculations of excited states make use of the adiabatic approximation, which implies a… (More)

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