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Minimal renormalization without ε-expansion - Amplitude functions in three dimensions below T

Zeitschrift für Physik B Condensed Matter, ISSN: 0722-3277, Vol: 89, Issue: 1, Page: 79-87
1992
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  • Citations
    26
    • Citation Indexes
      26
  • Captures
    1

Article Description

The minimal subtraction scheme and the Borel resummation method are used to calculate the amplitudes of renormalized correlation functions below T for the three-dimensional φ model with a oneccomponent order parameter. Accurate representations are given for the effective amplitudes of the renormalized expressions of the order parameter, of the susceptibility and of the specific heat. The resummed higher-order contributions to the order parameter,and to the specific heat turn out to yield only small corrections to the low-order approximations. Our results provide the basis for accurate analyses of the critical behavior of Ising-type systems in three dimensions below T including the amplitude functions. © 1992 Springer-Verlag.

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