Momentum-space non-hydrogenic wavefunction of quantum defect theory

Chaudhuri, Puspitapallab; Talukdar, B.; Adhikari, Sadhan K.

doi:10.1088/0953-4075/32/1/009

Cited by 3 publications

(1 citation statement)

References 14 publications

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“…However, it will be highly illuminating to extend the model for non-hydrogenic systems [21] like the alkali-metal atoms because most of the experiments on ionization have been carried out with these atoms [1]. In this context we note that the energy spectra of alkali-metal atoms can be described quite accurately using hydrogenic formula but with the principal quantum number n replaced by an effective quantum number ν such that ν = n − μ.…”

Section: Discussionmentioning

confidence: 99%

Ionization of Rydberg atoms by the kicks of half-cycle pulses

Chatterjee¹,

Saha

Talukdar

2015

Pramana - J Phys

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We present a quantum mechanical model to study the ionization of quasionedimensional Rydberg atoms interacting with half-cycle pulses (HCPs) and use it to demonstrate the inadequacy of semiclassical approaches to calculate ionization probabilities of such atoms subject to the impact of more than one HCP. For a single-kicked atom both models correctly reproduce the experimentally observed 's-curve' as can be seen by plotting the ionization probability P as a function of momentum transfer q 1 . We demonstrate that for a twice-kicked atom, the semiclassical model yields numbers for P which are not physically realizable. For fixed values of momentum transfers q 1 and q 2 , in a twice-kicked atom, the ionization probability as a function of time delay between the kicks exhibits periodic decay and revival. The results of the semiclassical approach appear to agree with the quantum mechanical values at the times of revival of P, else these show considerable deviation. We attempt to provide a physical explanation for the limitation of the semiclassical approach.

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Section: Discussionmentioning

confidence: 99%