Quantum and Thermal Fluctuations in Field Theory

Abstract

Blocking transformation is performed in quantum field theory at finite temperature. It is found that the manner temperature deforms the renormalized trajectories can be used to understand better the role played by the quantum fluctuations. In particular, it is conjectured that domain formation and mass parameter generation can be observed in theories without spontaneous symmetry breaking.

27pp+7 figures, MIT-CTP-2143

References in corpus (2)

• Finite Temperature Renormalization of the $({\varphi }^3{)}_6$- and $({\varphi }^4{)}_4$-Models at Zero Momentum
• Study of the Asymptotic Freedom of 2D Yukawa Models on the Lattice

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• Momentum Scale Expansion of Sharp Cutoff Flow Equations
• Vacuum decay in quantum field theory
• Wilson Renormalization Group formulation of Real Time thermal field theories
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• Kaluza-Klein Thresholds and Regularization (In)dependence
• Quantum Liouville Field Theory as Solution of a Flow Equation
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• Exact CTP Renormalization Group Equation for the Coarse Grained Effective Action
• Nonperturbative renomalization group for Einstein gravity with matter
• Symmetry Nonrestoration in a Gross-Neveu Model with Random Chemical Potential
• Exact Renormalization Group for O(4) Gauged Supergravity
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