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The GW/BSE Method in Magnetic Fields.


ABSTRACT: The GW approximation and the Bethe-Salpeter equation have been implemented into the Turbomole program package for computations of molecular systems in a strong, finite magnetic field. Complex-valued London orbitals are used as basis functions to ensure gauge-invariant computational results. The implementation has been benchmarked against triplet excitation energies of 36 small to medium-sized molecules against reference values obtained at the approximate coupled-cluster level (CC2 approximation). Finally, a spectacular change of colour from orange to green of the tetracene molecule is induced by applying magnetic fields between 0 and 9,000 T perpendicular to the molecular plane.

SUBMITTER: Holzer C 

PROVIDER: S-EPMC8655096 | biostudies-literature |

REPOSITORIES: biostudies-literature

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