Spinflip (SF) methods applied to excitedstate approaches like the Bethe–Salpeter equation allow access to the excitation energies of openshell systems, such as molecules and defects in solids. The eigenstates of these solutions, however, are generally not eigenstates of the spin operator
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A symmetry of a state
 Award ID(s):
 2207972
 NSFPAR ID:
 10533930
 Publisher / Repository:
 IOP
 Date Published:
 Journal Name:
 Journal of Physics A: Mathematical and Theoretical
 Volume:
 57
 Issue:
 31
 ISSN:
 17518113
 Page Range / eLocation ID:
 315304
 Format(s):
 Medium: X
 Sponsoring Org:
 National Science Foundation
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