Zobrazeno 1 - 10
of 90
pro vyhledávání: '"NISHIMURA, HIROMICHI"'
The resurgence structure of the 2d $O(N)$ sigma model at large $N$ is studied with a focus on an IR momentum cutoff scale $a$ that regularizes IR singularities in the semiclassical expansion. Transseries expressions for condensates and correlators ar
Externí odkaz:
http://arxiv.org/abs/2112.13999
Publikováno v:
Phys. Rev. D 102, 034020 (2020)
We discuss the deconfinement and the CP-breaking phase transitions at $\theta=\pi$ in Yang-Mills theories. The 't Hooft anomaly matching prohibits the confined phase with CP symmetry and requires $T_{dec}(\theta=\pi) \le T_{CP}$, where $T_{dec}(\thet
Externí odkaz:
http://arxiv.org/abs/2006.01487
Publikováno v:
Phys. Rev. D 101, 094025 (2020)
At a nonzero temperature T, a constant field $\overline{A}_0 \sim T/g$ generates nontrivial eigenvalues of the thermal Wilson line. We discuss contributions to the free energy of such a holonomous plasma when the coupling constant, $g$, is weak. We r
Externí odkaz:
http://arxiv.org/abs/2002.00968
Autor:
Altes, Christiaan P. Korthals, Nishimura, Hiromichi, Pisarski, Robert D., Skokov, Vladimir V.
We compute the term $\sim g^3$ in the free energy for a $SU(N)$ gauge theory with nonzero holonomy at nonzero temperature. If the holonomy is generated kinematically by the introduction of gauge invariant sources coupled to Polyakov loops, the contri
Externí odkaz:
http://arxiv.org/abs/1911.10209
Autor:
Nishimura, Hiromichi, Tanizaki, Yuya
Publikováno v:
JHEP 06 (2019) 040
We study QCD with massless quarks on $\mathbb{R}^3\times S^1$ under symmetry-twisted boundary conditions with small compactification radius, i.e. at high temperatures. Under suitable boundary conditions, the theory acquires a part of the center symme
Externí odkaz:
http://arxiv.org/abs/1903.04014
This is a progress report on the calculation of the effective potential for the Polyakov loop in $SU(N)$ pure gauge theory beyond two-loop order. We introduce a new approach using the Poisson resummation formula to compute sum-integrals with the holo
Externí odkaz:
http://arxiv.org/abs/1811.11736
We analyze the phase structure of $SU(\infty)$ gauge theory at finite temperature using matrix models. Our basic assumption is that the effective potential is dominated by double-trace terms for the Polyakov loops. As a function of the temperature, a
Externí odkaz:
http://arxiv.org/abs/1712.08183
Publikováno v:
Phys. Rev. D 97, 036014 (2018)
We study phase transitions in $SU(\infty)$ gauge theories at nonzero temperature using matrix models. Our basic assumption is that the effective potential is dominated by double trace terms for the Polyakov loops. As a function of the various paramet
Externí odkaz:
http://arxiv.org/abs/1712.04465
Publikováno v:
JHEP 1710 (2017) 100
We propose new gradient flows that define Lefschetz thimbles and do not blow up in a finite flow time. We study analytic properties of these gradient flows, and confirm them by numerical tests in simple examples.
Comment: 31 pages, 11 figures, (
Comment: 31 pages, 11 figures, (
Externí odkaz:
http://arxiv.org/abs/1706.03822
Publikováno v:
Phys. Rev. D 95, 076003 (2017)
A general field-theoretic framework for the treatment of liquid-gas phase transitions is developed. Starting from a fundamental four-dimensional field theory at nonzero temperature and density, an effective three-dimensional field theory with a sign
Externí odkaz:
http://arxiv.org/abs/1612.09575