Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum Monte Carlo calculated potential energy curve for the helium
  dimer   We report results of both Diffusion Quantum Monte Carlo(DMC) method and
Reptation Quantum Monte Carlo(RMC) method on the potential energy curve of the
helium dimer. We show that it is possible to obtain a highly accurate
description of the helium dimer. An improved stochastic reconfiguration
technique is employed to optimize the many-body wave function, which is the
starting point for highly accurate simulations based on the Diffusion Quantum
Monte Carlo(DMC) and Reptation Quantum Monte Carlo (RMC) methods. We find that
the results of these methods are in excellent agreement with the best
theoretical results at short range, especially recently developed Reptation
Quantum Monte Carlo(RMC) method, yield practically accurate results with
reduced statistical error, which gives very excellent agreement across the
whole potential. For the equilibrium internuclear distance of 5.6 bohr, the
calculated electronic energy with Reptation Quantum Monte Carlo(RMC) method is
5.807483599$\pm$0.000000015 hartrees and the corresponding well depth is
-11.003$\pm$0.005 K.

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The categories of this paper are: gr-qc
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The categories of this paper are: hep-lat
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The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-bio
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The categories of this paper are: funct-an
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: stat
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The categories of this paper are: math-ph
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The categories of this paper are: astro-ph