Abstract
A block spin approach to the Euclideanφ 4 field theory in three dimensions is proposed by using the three-dimensional version of Gawedzki and Kupiainen's block spin transformation method. The latticeφ 43 model recovers the rotation invariance in the continuum limit, when the coupling constant is small.
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Watanabe, H. Block spin approach to φ 43 field theory. J Stat Phys 54, 171–190 (1989). https://doi.org/10.1007/BF01023477
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DOI: https://doi.org/10.1007/BF01023477