Phys. Rev. Lett. 39, 95–98 (1977)Critical Exponents for the n-Vector Model in Three Dimensions from Field TheoryReceived 14 April 1977; published in the issue dated 11 July 1977 We present a new calculation of the critical exponents of the n-vector model through field-theoretical methods. The coefficients of the renormalization functions of the (ϕ⃗2)2 theory are expanded in powers of the coupling constant. Asymptotic estimates of large order of perturbation series are used to transform the divergent perturbation series into a convergent one. As a consequence, new and more precise values of critical exponents are obtained. © 1977 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.39.95
DOI:
10.1103/PhysRevLett.39.95
PACS:
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