Qprop with faster calculation of photoelectron spectra

Published: 9 Jan 2020 | Version 2 | DOI: 10.17632/cxj2ygn4ph.2
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Description of this data

The calculation of accurate photoelectron spectra (PES) for strong-field laser-atom experiments is a demanding computational task, even in single-active-electron approximation. The Qprop code, published in 2006, has been extended in 2016 in order to provide the possibility to calculate PES using the so-called t-SURFF approach [Tao and Scrinzi (2012)]. In t-SURFF, the flux through a surface while the laser is on is monitored. Calculating PES from this flux through a surface enclosing a relatively small computational grid is much more efficient than calculating it from the widely spread wavefunction at the end of the laser pulse on a much larger grid. However, the smaller the minimum photoelectron energy of interest is, the more post-propagation after the actual laser pulse is necessary. This drawback of t-SURFF has been overcome by Morales et al. [Morales et al. (2016)] by noticing that the propagation of the wavefunction from the end of the laser pulse to infinity can be performed very efficiently in a single step. In this work, we introduce Qprop 3.0, in which this single-step post-propagation (dubbed i-SURFV) is added. Examples, illustrating the new feature, are discussed. A few other improvements, concerning mainly the parameter files, are also explained.

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This data is associated with the following publication:

Qprop with faster calculation of photoelectron spectra

Published in: Computer Physics Communications

Latest version

  • Version 2

    2020-01-09

    Published: 2020-01-09

    DOI: 10.17632/cxj2ygn4ph.2

    Cite this dataset

    Tulsky, Vasily; Bauer, Dieter (2020), “Qprop with faster calculation of photoelectron spectra”, Mendeley Data, v2 http://dx.doi.org/10.17632/cxj2ygn4ph.2

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Atomic Physics, Computational Physics, Schrödinger Equation

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