Tensor network analysis of critical coupling in two dimensional ϕ4 theory

• Published in: The journal of high energy physics Vol. 2019; no. 5
• Main Authors: Kadoh, Daisuke, Kuramashi, Yoshinobu, Nakamura, Yoshifumi, Sakai, Ryo, Takeda, Shinji, Yoshimura, Yusuke
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.05.2019
• Subjects: Classical and Quantum Gravitation; Elementary Particles; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Regular Article - Theoretical Physics; Relativity Theory; String Theory; Discrete Symmetries; Field Theories in Lower Dimensions; Lattice Quantum Field Theory

A bstract We make a detailed analysis of the spontaneous Z 2 -symmetry breaking in the two dimensional real ϕ 4 theory with the tensor renormalization group approach, which allows us to take the thermodynamic limit easily and determine the physical observables without statistical uncertainties. We d...