Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finite Size Scaling and ``perfect'' actions: the three dimensional Ising
  model   Using Finite-Size Scaling techniques, we numerically show that the first
irrelevant operator of the lattice $\lambda\phi^4$ theory in three dimensions
is (within errors) completely decoupled at $\lambda=1.0$. This interesting
result also holds in the Thermodynamical Limit, where the renormalized coupling
constant shows an extraordinary reduction of the scaling-corrections when
compared with the Ising model. It is argued that Finite-Size Scaling analysis
can be a competitive method for finding improved actions.

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The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
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The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
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The categories of this paper are: nlin
1
The categories of this paper are: cs
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The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics