Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: First-principles modelling for time-resolved ARPES under different
  pump-probe conditions   First-principles methods for time-resolved angular resolved photoelectron
spectroscopy play a pivotal role in providing interpretation and microscopic
understanding of the complex experimental data and in exploring novel
observables or observation conditions that may be achieved in future
experiments. Here we describe an efficient, reliable and scalable
first-principles method for tr-ARPES based on time-dependent density functional
theory including propagation and surface effects usually discarded in the
widely used many-body techniques based on computing the non-equilibrium
spectral function and discuss its application to a variety of pump-probe
conditions. We identify four conditions, depending on the length of the probe
relative to the excitation in the materials on the one hand and on the overlap
between pump and probe on the other hand. Within this paradigm different
examples of observables of time-resolved ARPES are discussed in view of the
newly developed and highly accurate time-resolved experimental spectroscopies.

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The categories of this paper are: math
35
The categories of this paper are: mtrl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: q-fin
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The categories of this paper are: hep-th
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-ex
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The categories of this paper are: ao-sci
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ph
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The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: eess
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The categories of this paper are: dg-ga
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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph