Physical Review A (Atomic, Molecular, and Optical Physics)
We report on our investigation of the formation and survival of long-lived Rydberg states in argon produced by pulsed laser excitation of ultracold metastable state argon atoms in a magneto-optical trap. The states studied have a 2P1/2 core. Low angular momentum Rydberg states with this core normally autoionize rapidly. If, however, atoms are excited in the presence of electric fields, higher angular momentum states, traditionally termed ZEKE states (ZEKE is derived from zero kinetic energy) can be formed. The lifetime of these states can be orders of magnitude greater than low angular momentum states. In this paper, we report on the time dependence of ZEKE Rydberg state population in an ultracold environment.
Original Publication Citation
Ranjit, G., & Sukenik, C.I. (2013). Experimental investigation of long-lived Rydberg states in ultracold argon. Physical Review A, 87(3), 033418. doi: 10.1103/PhysRevA.87.033418
Ranjit, G. and Sukenik, C. I., "Experimental Investigation of Long-Lived Rydberg States in Ultracold Argon" (2013). Physics Faculty Publications. 3.