par Weis, Stephan 
Référence Reports on mathematical physics, 82, 3, page (317-336)
Publication Publié, 2018-12
Référence Reports on mathematical physics, 82, 3, page (317-336)
Publication Publié, 2018-12
Article révisé par les pairs
| Résumé : | The ground space of every element of a vector space of Hermitian matrices is an intersection of maximal ground spaces of matrices from the same space. We characterize the ground spaces and the maximal ground spaces in terms of operator cones. This contributes to the geometry of quantum marginals, as their exposed faces are in one-to-one correspondence with ground spaces of local Hamiltonians. |
