51 citations · 118 across the 8 of their papers we have counts for
3 papers · 1 filter
Dynamic Critical Exponent from One- and Two-Particle Irreducible 1/N Expansions of Effective and Microscopic Theories
Osamu Morimatsu, Hirotsugu Fujii, Kazunori Itakura +1
We study the dynamic critical exponent from effective and microscopic theories. We employ a simple TDGL model, or model A in the classification of Hohenberg and Halperin, as an eff…
Microscopic identification of dissipative modes in relativistic field theories
Yohei Saito, Hirotsugu Fujii, Kazunori Itakura +1
We present an argument to support the existence of dissipative modes in relativistic field theories. In an O(N) theory in spatial dimension , a relaxation constant $Γ…
Critical exponents from two-particle irreducible 1/N expansion
Yohei Saito, Hirotsugu Fujii, Kazunori Itakura +1
We calculate the critical exponent in the 1/N expansion of the two-particle-irreducible (2PI) effective action for the O(N) symmetric model in three spatial dimensions. T…