Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Monte Carlo Method for Attractive Coulomb Potentials   Starting from an exact lower bound on the imaginary-time propagator, we
present a Path-Integral Quantum Monte Carlo method that can handle singular
attractive potentials. We illustrate the basic ideas of this Quantum Monte
Carlo algorithm by simulating the ground state of hydrogen and helium.

1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
19
The categories of this paper are: eess
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
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The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc