Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Molecular orbital tomography beyond the plane wave approximation   The use of plane wave approximation in molecular orbital tomography via
high-order harmonic generation has been questioned since it was proposed, owing
to the fact that it ignores the essential property of the continuum wave
function. To address this problem, we develop a theory to retrieve the valence
molecular orbital directly utilizing molecular continuum wave function which
takes into account the influence of the parent ion field on the continuum
electrons. By transforming this wave function into momentum space, we show that
the mapping from the relevant molecular orbital to the high-order harmonic
spectra is still invertible. As an example, the highest orbital of
$\mathrm{N_2}$ is successfully reconstructed and it shows good agreement with
the \emph{ab initio} orbital. Our work clarifies the long-standing controversy
and strengthens the theoretical basis of molecular orbital tomography.

34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
2
The categories of this paper are: math
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an