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arXiv 1908.02272hep-thcond-mat.stat-mechmath-phmath.MP
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NLO critical exponents of O($N$) lambda $ϕ^{4}$ scalar field theories in curved spacetime

H. A. S. Costa, P. R. S. Carvalho

英文摘要:

In this paper we investigate analytically the conformal symmetry influence on the next-to-leading order radiative quantum corrections to critical exponents for massless O($N$) $λϕ^{4}$ scalar field theories in curved spacetime. We renormalize the theory by applying the BPHZ method. We find that the critical exponents are the same as that of flat spacetime, at least at the loop order considered. We argue that this result agrees perfectly with the universality hypothesis.

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