# Two papers published

Igor has demonstrated that the recently predicted 'angulon instabilities' have, in fact, been observed in recent experiments:

- I. N. Cherepanov, M. Lemeshko

Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules,

Phys. Rev. Materials**1**, 035602 (2017), arXiv:1705.09220

Giacomo has developed a diagrammatic technique to approach angular momentum in quantum many-particle systems. His theory combines the Feynman diagrams of condensed-matter physics with the angular momentum diagrams of atomic and nuclear structure theory:

- G. Bighin, M. Lemeshko

Diagrammatic approach to orbital quantum impurities interacting with a many-particle environment,

Phys. Rev. B**96**, 085410 (2017), arXiv:1704.02616

**Was selected as an Editor's suggestion**