Autoionization of spin-polarized metastable helium in tight anisotropic harmonic traps

Timothy J. Beams, Ian B. Whittingham, Gillian Peach

Spin-dipole mediated interactions between tightly confined metastable helium atoms couple the spin-polarized quintet ${}^5{\Sigma }_g^{+}$ state to the singlet ${}^1{\Sigma }_g^{+}$ state…