wendin_1987 =========== G\. Wendin, L\. Jonsson and A\. L'Huillier, "Many\-electron dynamics of heavy atoms in intense laser fields\: effects of screening and correlation", J\. Opt\. Soc\. Am\. B 4, 833\-846 \(1987\) `Source record `__ · :doc:`Catalogue ` · :doc:`Review register ` DOI: `10\.1364/JOSAB\.4\.000833 `__ **Source kind:** theory **Recorded technique:** A review of many\-electron effects in multiphoton ionisation of heavy atoms \(screening, relaxation and shake\-up, Fermi\-sea correlation; dressing of the hole and of the photoelectron; time scales of two\-step double ionisation\), with one application\: the zero\-intensity two\-photon one\-electron ionisation of the Xe 5p shell with every electron\-photon interaction RPA\-screened \(Sec\. 3, Eqs\. 7\-14, Figs\. 2\-4\), 'closely following Ref\. 15' \(p\. 836\), Ref\. 15 being L'Huillier and Wendin, J\. Phys\. B 20, L37 \(1987\)\: lhuillier\_1987b\. **Materials in structured entries:** None recorded. **Dataset quantities:** None recorded. **Contents:** 0 datasets; 0 formulas. Curation notes -------------- Journal pp\. 833\-846 = PDF pages 1\-14 \(a scan\: each page one 1\-bit image of 3136 x 4448 pixels, about 400 dpi, with a text layer\)\. Identity checked on the first page \(Journal of the Optical Society of America B, Vol\. 4, No\. 5, May 1987, p\. 833; Goran Wendin and Lars Jonsson, Chalmers, and Anne L'Huillier, CEN Saclay; received November 25, 1986, accepted January 26, 1987\) on 2026\-10\-09\. NOTHING IS EXTRACTED\: the paper's two\-photon cross sections are another paper's figures redrawn\. Figs\. 3 and 4 \(p\. 837\) are lhuillier\_1987b's Figs\. 2 and 4 \(the LDA\-basis independent\-electron, LDRPA and first\-screened LDRPA lines on a linear axis; the RPAE and LDRPA lines on a logarithmic axis, with Gangopadhyay et al\.'s squares and McCown et al\.'s cross\), relettered\: lhuillier\_1987b's readings of all five lines, mapped onto these figures through calibrations from their own tick marks \(frame\-sheared, as in tools/extract/lhuillier\_1987b\.py\), lie on the drawn lines throughout \(overlays inspected, 2026\-10\-09\)\. The captions agree \(linear polarisation; Fig\. 4\: 'The two\-photon \(0\.46\-Ry\) and one\-photon \(0\.92\-Ry\) HF ionization thresholds are indicated by the hatched lines'\); the text \(pp\. 836\-838\) repeats the letter's\. Taking them again would hold one calculation twice \(data rule 5\); lhuillier\_1987b holds them, and lhuillier\_1987 \(TC\-883\) the RPAE, HF and LDRPA of the full account\. THE DEFINITION \(p\. 836, Eq\. 14\)\: 'The two\-photon one\-electron ionization generalized cross section sigma\_2 \(in units of cm4 sec\) can be written as sigma\_2 = 2 pi \(alpha c / a0\) \(1 / F F0\)^2 sum\_l \|t\_eps\_i\(omega\)\|^2, where \.\.\. omega is the photon energy\. F0 is equal to 3\.22 x 10^34 in photons \(cm2 sec^\-1\)\.' Here the amplitude t carries the intensity I \(Eqs\. 9a, 11\-13, t = I sum d d / \(omega\_ni \- omega\)\), so the flux F cancels; lhuillier\_1987b's Eq\. \(1\) writes the same cross section as \(omega / F0\)^2 with t free of I\. The rate is sigma\_2 F^2\. THE TEXT \(p\. 837\), quoted for the comparisons\: McGuire's result 'is slightly below our independent\-electron result'; Gangopadhyay et al\.'s MQDT '\(represented by squares in Fig\. 4\) leads to good agreement with the present nonlinear RPAE results in the 0\.5\-0\.6\-Ry range'; 'the cross in Fig\. 4 indicates an experimental point obtained at 0\.47 Ry \(193 nm\)'; 'the experimental point is much closer to the RPAE or LDRPA result than to the one\-electron results'\. 'Unfortunately, at present there are no experimental two\-photon one\-electron cross\-section results in the resonance and ATI regions' \(p\. 838\)\. The squares are gangopadhyay\_1986's Table I \(open continuum\), checked in lhuillier\_1987b\. karamatskou\_2017 \(TC\-881\) overlays 'the RPAE curve of Wendin et al\.' \(its Ref\. 21, this paper; digitised by those authors\) in its Fig\. 3 and moves its own TDCIS curve 0\.3264 eV down onto it\. That curve, read from karamatskou\_2017's vector drawing \(the stroke of colour \(33, 178, 171\) in its Fig\. 3, with that script's calibration\), peaks at 9\.176 eV \(0\.6744 Ry; the 6s\), is clipped at the frame at 10\.81\-10\.83 and 11\.00\-11\.02 eV \(5d, 7s\) and peaks again at 11\.535 and 11\.636 eV \(6d, 8s\)\: the RPAE resonances of this paper's Fig\. 4 \(lhuillier\_1987 reads the RPAE 6s at 0\.675 Ry, 9\.184 eV\)\. karamatskou\_2017's shifted 6s peak, 9\.159 eV, lies 0\.017 eV below the RPAE 6s as drawn there\. Between the resonances the RPAE falls below that figure's frame \(5e\-50 cm4 s\), so no off\-resonance values are compared\. NOT TAKEN\: Figs\. 1, 2 and 5 \(diagrams\); Sec\. 4's dressing formulas and Sec\. 5's time scales \(no data\)\. Further two\-photon calculations the paper cites, not in the library\: M\. S\. Pindzola and H\. P\. Kelly, Phys\. Rev\. A 11, 1543 \(1975\); R\. Moccia, N\. K\. Rahman and A\. Rizzo, J\. Phys\. B 16, 2734 \(1983\) \(as printed here; lhuillier\_1987b's reference list gives p\. 2737\); T\. F\. Jiang and A\. F\. Starace \(personal communication, 1986\); A\. L'Huillier and G\. Wendin, Phys\. Rev\. A \(to be published; lhuillier\_1987, TC\-883\)\. **Recorded bibliographic identity status:** VALIDATED\_WITH\_WARNINGS. This concerns identification of the source; it does not establish the scientific correctness of its contents. Datasets -------- No datasets are recorded. Formulas -------- No formulas are recorded. Corrections ----------- No dataset errata are recorded in this source record. Formula corrections, where recorded, appear with their formulas above. Curation notes may also discuss corrections or unresolved interpretation. Consult the :doc:`review register ` for the checks and decisions.