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Application of a neural network to the sign problem via the path optimization method

Yuto Mori, Kouji Kashiwa and Akira Ohnishi.

in Progress of Theoretical and Experimental Physics

P ublished online February 2018 .

Journal Article. Subjects: Computational Physics; Classical Mechanics; Particles and Fields. 4037 words.

Abstract

We introduce the feedforward neural network to attack the sign problem via the path optimization method. The variables of integration are complexified...

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Boltzmann Equation for Relativistic Neutral Scalar Field in Non-Equilibrium Thermo Field Dynamics

Yuichi Mizutani and Tomohiro Inagaki.

in Progress of Theoretical Physics

May 2011; p ublished online May 2011 .

Journal Article. Subjects: Classical Mechanics; Particles and Fields. 0 words.

A relativistic neutral scalar field is investigated on the basis of the Schwinger-Dyson equation in the non-equilibrium thermo field dynamics. A time evolution equation for a distribution...

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Fermionic functional renormalization group approach to superfluid phase transition

Yuya Tanizaki, Gergely Fejős and Tetsuo Hatsuda.

in Progress of Theoretical and Experimental Physics

P ublished online April 2014 .

Journal Article. Subjects: Condensed Matter Physics; Quantum Physics; Classical Mechanics; Particles and Fields. 7548 words.

A fermionic functional renormalization group (FRG) is applied to describe the superfluid phase transition of the two-component fermionic system with attractive contact interaction. The...

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Ising model on random networks and the canonical tensor model

Naoki Sasakura and Yuki Sato.

in Progress of Theoretical and Experimental Physics

P ublished online May 2014 .

Journal Article. Subjects: Classical Mechanics; Particles and Fields. 6262 words.

We introduce a statistical system on random networks of trivalent vertices for the purpose of studying the canonical tensor model, which is a rank-three tensor model in the canonical...

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Phase diagram of QCD chaos in linear sigma models and holography

Tetsuya Akutagawa, Koji Hashimoto, Takeshi Miyazaki and Toshihiro Ota.

in Progress of Theoretical and Experimental Physics

P ublished online June 2018 .

Journal Article. Subjects: Classical Mechanics; Particles and Fields. 9471 words.

Abstract

Measuring chaos of QCD-like theories is a challenge for formulating a novel characterization of quantum gauge theories. We define a chaos phase...

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Spontaneous Symmetry Breaking

Giovanni Jona-Lasinio.

in Progress of Theoretical Physics

November 2010; p ublished online November 2010 .

Journal Article. Subjects: Quantum Physics; Classical Mechanics; Mathematical and Statistical Physics; Particles and Fields. 0 words.

Spontaneous symmetry breaking (SSB) is a widespread phenomenon in several areas of physics. In this paper I wish to illustrate some situations where spontaneous symmetry breaking presents...

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