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Ionization Potentials and Quantum Defects of ls2np2p Rydberg States of Lithium Atom

         

摘要

In this work,ionization potentials and quantum effects of 1s^2 np ~2P Rydberg states of lithium are calculatedbased on the calibrated quantum defect function.Energy levels and quantum defects for 1s^2np^2P bound states andtheir adjacent continuum states are calculated with the R-matrix theory,and then the quantum defect function of the1s^2np (n7) channel is obtained,which varies smoothly with the energy based on the quantum defect theory.Theaccurate quantum defect of the 1s^2 7p^2P state derived from the experimental data is used to calibrate the originalquantum defect function.The new function is used to calculate ionization potentials and quantum effects of 1s^2np ~2P(n 7) Rydberg states.Present calculations are in agreement with recent experimental data in whole.

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