R. J. Rico

A doubles correction to electronic excited states from configuration interaction in the space of single substitutions

Manabu Oumi, Martin Head-Gordon, M. Head‐Gordon, 1994 .

The origin of differences between coupled cluster theory and quadratic configuration interaction for excited states

M. Head‐Gordon, Timothy J. Lee, R. J. Rico, 1994 .

Spectral collapse in the two-photon quantum Rabi model

B. M. Rodríguez-Lara, R. J. Rico, F. H. Maldonado-Villamizar, 2019, Physical Review A.

Single-reference theories of molecular excited states with single and double substitutions

Martin Head-Gordon, M. Head‐Gordon, R. J. Rico, 1993 .