Autoionization rates and energy levels of tripletnf,v=1 Rydberg states ofH2

Predissociation and autoionization of triplet Rydberg states in molecular hydrogen

“…Lindsay et al have studied the n f series using autoionization as probe. 7 They remark on the large effects of an external electric field up to 1000 V cm…”

“…11 This model has been successfully applied. 7,12 In brief, the lowest-order couplings that perturb the Rydberg electron from hydrogenic energies are considered. There are two effects: ͑1͒ The potential experienced by the outer elec- tron is expanded into a multipole series, in which the quadrupole moment of the H 2 ϩ core is the first nonzero term; ͑2͒ the presence of the outer electron induces mixing of the core states and this is taken into account by considering the polarizability of the H 2 ϩ core.…”

“…In the ungerade Rydberg series, also higher angular momentum ungerade states have been studied ͑ f series͒ via electron excitation from the ground state followed by twophoton excitation. 6,7 Using multiphoton excitation also the dand s-gerade Rydberg series have been detected and characterized. 8 In a light molecule such as H 2 , the triplet Rydberg series are not accessible from the singlet electronic ground state.…”

Separation of long-range and short-range interactions in Rydberg states of diatomic molecules

“…This "long-range model" has been successfully applied to both atoms and molecules numerous times with great success. [1][2][3][4][5] In penetrating states, on the other hand, the wavefunction of the outer electron does overlap that of the core electrons and consequently experiences not only the long-range interactions described above but also Coulomb and exchange interactions with the inner electrons at short range. Calculations of the properties of core-penetrating Rydberg states are therefore inherently more complicated.…”