NUCLEAR TECHNIQUES, Volume. 46, Issue 4, 040002(2023)
Critical phenomena and functional renormalization group
Recent progress in studies on quantum chromodynamics (QCD) phase transition and related critical phenomena within the functional renormalization group (fRG) approach were reviewed, including the nonperturbative critical exponents and baryon number fluctuations, which are pertinent to the critical end point (CEP) in the QCD phase diagram. The fRG is a nonperturbative continuum field approach, in which quantum thermal fluctuations are successively integrated with the evolution of the renormalization group (RG) scale. Different methods of finding solutions to the flow or fixed-point equations of a nonperturbative effective potential have been discussed, for example, the Taylor expansion, expansion of the spatial dimension
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Shi YIN, Yangyang TAN, Weijie FU. Critical phenomena and functional renormalization group[J]. NUCLEAR TECHNIQUES, 2023, 46(4): 040002
Category: Research Articles
Received: Dec. 22, 2022
Accepted: --
Published Online: Apr. 27, 2023
The Author Email: FU Weijie (wjfu@dlut.edu.cn)