Heavy Rydberg states

Abstract

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Spectroscopic Observation and Characterization of H+H− Heavy Rydberg States

“…Indeed, as shown in Figure 11 of ref 21, lifetimes were found to scale as n 4 , a clear indication of angular momentum mixing in the electric field. 3.5.…”

“…20 The temporal behavior in the wave packet dynamics can be quantitatively interpreted in terms of a heavy Rydberg system, or a "heavy Bohr atom": a hydrogen atom, in which the negatively charged electron is exchanged for a composite H -particle, which is treated as a point-like entity. 21 It was postulated that heavy Rydberg systems follow the physical laws of electronic Rydberg systems and that each system can be described by a single mass-scaling parameter that defines all properties of heavy Rydberg states. This was tested and quantitatively demonstrated in detecting wave packet dynamics in the H + F -system, 22 which has a reduced mass differing by a factor of 2 from the H + H -system.…”

Continuity of heavy Rydberg behaviour in the ungerade ion-pair states of H 2

“…A short Rydberg series has also been observed in the vibrational levels of Cl 2 by Mollet and Merkt [5,6]. Ion-pair vibronic states in H 2 were first observed in a timedomain experiment and named Heavy Rydberg (HR) states by Reinhold and Ubachs [7]. They were also identified in the frequency domain above the n ¼ 3 dissociation threshold by Ubachs and coworkers [8,9] in the gerade manifold and later in the ungerade manifold by McCormack and co-workers [10,11].…”

Use of heavy-Rydberg ion-pair states to probe dissociative electron attachment

“…They therefore remain bound creating an ion-pair state in which the ions orbit each other at relatively large radii [4][5][6][7][8][9]. Such states are also termed heavy-Rydberg states because many of their properties parallel those of Rydberg atoms [10,11]. While Rydberg atom collisions can be used to create a wide variety of ion-pair states and study their properties, we demonstrate here that ion-pair formation can also be used to explore the lifetimes and decay energetics of short-lived negative ion intermediates.…”