Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-color phase-of-the-phase spectroscopy in the multiphoton regime   Momentum-resolved photoelectron emission from xenon in colinearly polarized
two-color laser fields at above-threshold ionization conditions is studied both
experimentally and theoretically. We utilize phase-of-the-phase spectroscopy as
recently introduced by Skruszewicz et al., Phys. Rev. Lett. 115, 043001 (2015)
to analyze the dependence of the yields on the relative phase $\varphi$ between
the fundamental and second harmonic laser fields. The resulting phase-of-phase
spectra feature a characteristic checkerboard pattern, which can analytically
be described within the strong-field approximation.

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The categories of this paper are: chao-dyn
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The categories of this paper are: cs
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The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
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The categories of this paper are: eess
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The categories of this paper are: math
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The categories of this paper are: econ
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The categories of this paper are: supr-con
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
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The categories of this paper are: q-alg
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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