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4 papers · 2 filters
Two-loop effective potential, thermal resummation and first-order phase transitions: Beyond the high-temperature expansion
Koichi Funakubo, Eibun Senaha
We study a finite temperature two-loop resummed effective potential in the Abelian gauge theory. A tractable calculation scheme without using a high-temperature expansion is devise…
Two-color QCD at imaginary chemical potential and its impact on real chemical potential
Kouji Kashiwa, Takahiro Sasaki, Hiroaki Kouno +1
We study properties of two-color QCD at imaginary chemical potential () from the viewpoint of the Roberge-Weiss (RW) periodicity, the charge conjugation and the pseudo-reality.…
A practical solution to the sign problem at finite theta-vacuum angle
Takahiro Sasaki, Hiroaki Kouno, Masanobu Yahiro
We propose a practical way of circumventing the sign problem in lattice QCD simulations with a theta-vacuum term. This method is the reweighting method for the QCD Lagrangian after…
The quarkynic phase and the Z_{Nc} symmetry
Yuji Sakai, Hiroaki Kouno, Takahiro Sasaki +1
We investigate the interplay between the Z_{Nc} symmetry and the emergence of the quarkyonic phase, adding the flavor-dependent complex chemical potentials μ_f=μ+iTθ_f with (θ_f)=(…