Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topological approach for laser acceleration investigation   An approach using topology reveals a new understanding and knowledge of laser
particle acceleration. Laser pulse irradiation on a thin-foil target is
examined using two-dimensional particle-in-cell simulations. Through topology,
laser ion acceleration schemes are classified depending on whether the deformed
target shape after laser irradiation is homeomorphic with respect to the
initial target. High energy ions are generated with high-efficiency when the
deformed target shape is non-homeomorphic. In this case, the target thickness
greatly affects the obtained ion energy. However, when the deformed target
shape is homeomorphic, the obtained ion energy is low, and the effect of the
target thickness is small.

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The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph