Hyperfine Rovibrational States of ${\mathrm{H}}_{3}^{+}$ in a Weak External Magnetic Field

Author(s): Gustavo Avila, Ayaki Sunaga, Stanislav Komorovsky, and Edit Mátyus Rovibrational energies, wave functions, and Raman transition moments are reported for the lowest-energy states of the ${\mathrm{H}}_{3}^{+}$ molecular ion including the magnetic couplings of the proton spins and molecular rotation in the presence of a weak external magnetic field. The rovibrational-… [Phys. Rev. Lett. 135, 043003] Published Tue Jul 22, 2025