Lifetimes of atomic Rydberg states by autocorrelation function

摘要

Study of atomic Rydberg states and their interactions with electromagnetic field is of current interest. These states are pertinent to applications in diverse fields such as astrophysics, plasma physics, space physics...[1]. Knowledge of atomic parameters such as radiative lifetimes and oscillator strengths is often needed. However the calculation of these parameters requires the knowledge of dipole radial matrix elements. Due to difficulties related to the determination of accurate wave function, radial matrix elements are obtained by different approximate methods [2-5]. Furthermore, experimental determination of Rydberg atomic parameters is not systematic [6]. It is worth to note that, the technique of cooling allows accurate determination of highly exited atomic lifetimes [7].