title: Critical conditions for stable dipole-bound dianions.
abstract: We present finite size scaling calculations of the critical parameters for binding two electrons to a finite linear dipole field. This approach gives very accurate results for the critical parameters by using a systematic expansion in a finite basis set. A complete ground state stability diagram for the dipole-bound dianion is obtained using accurate variational and finite size scaling calculations. We also study the near threshold behavior of the ground state energy by calculating its critical exponent.
authors.affiliation: Facultad de Matemática, Astronomía y Física, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina. ferron@tero.fis.uncor.edu
authors.forename: Alejandro
authors.initials: A
authors.lastname: Ferrón
authors.forename: Pablo
authors.initials: P
authors.lastname: Serra
authors.forename: Sabre
authors.initials: S
authors.lastname: Kais