24 citations · 55 across the 12 of their papers we have counts for
13 papers
Detecting one-dimensional bosonic SPT phases via twisted entropic order parameter
Kosei Fujiki, Tsubasa Oishi, Soichiro Shimamori
Entanglement asymmetry, introduced by F. Ares, S. Murciano and P. Calabrese, provides a density-matrix diagnostic of symmetry breaking and successfully captures the Landau data ass…
Subdimensional Disorder and Logarithmic Defect
Soichiro Shimamori, Yifan Wang
We study quenched disorder localized on a -dimensional subspacetime in a -dimensional conformal field theory. Motivated by the logarithmic behavior often associated with diso…
The SymTFT for -ality defects: Part I
Justin Kaidi, Xiaoyi Shi, Soichiro Shimamori +1
In order to obtain the SymTFT for a theory with an -ality extension of a discrete, Abelian group , one begins by considering a bulk -gauge theory, and then gauges an appro…
Entanglement Asymmetry and Quantum Mpemba Effect for Non-Abelian Global Symmetry
Harunobu Fujimura, Soichiro Shimamori
Entanglement asymmetry is a measure that quantifies the degree of symmetry breaking at the level of a subsystem. In this work, we investigate the entanglement asymmetry in $\wideha…
Boundary Scattering and Non-invertible Symmetries in 1+1 Dimensions
Soichiro Shimamori, Satoshi Yamaguchi
Recent studies by Copetti, Córdova and Komatsu have revealed that when non-invertible symmetries are spontaneously broken, the conventional crossing relation of the S-matrix is mod…
New Field Theories with Foliation Structure and Subdimensional Particles from Godbillon-Vey Invariant
Hiromi Ebisu, Masazumi Honda, Taiichi Nakanishi +1
Recently, subdimensional particles including fractons have attracted much attention from various areas. Notable features of such matter phases are mobility constraints and subexten…
Localized RG flows on composite defects and -theorem
Dongsheng Ge, Tatsuma Nishioka, Soichiro Shimamori
We consider a composite defect system where a lower-dimensional defect (sub-defect) is embedded to a higher-dimensional one, and examine renormalization group (RG) flows localized…
Conformal field theory with composite defect
Soichiro Shimamori
We explore higher-dimensional conformal field theories (CFTs) in the presence of a conformal defect that itself hosts another sub-dimensional defect. We refer to this new kind of c…
Entanglement Rényi entropy and boson-fermion duality in massless Thirring model
Harunobu Fujimura, Tatsuma Nishioka, Soichiro Shimamori
We investigate the second Rényi entropy of two intervals in the massless Thirring model describing a self-interacting Dirac fermion in two dimensions. Boson-fermion duality relatin…
Non-invertible duality defect and non-commutative fusion algebra
Yuta Nagoya, Soichiro Shimamori
We study non-invertible duality symmetries by gauging a diagonal subgroup of a non-anomalous U(1) U(1) global symmetry. In particular, we employ the half-space gauging to…
The epsilon expansion of the O model with line defect from conformal field theory
Tatsuma Nishioka, Yoshitaka Okuyama, Soichiro Shimamori
We employ the axiomatic framework of Rychkov and Tan to investigate the critical O vector model with a line defect in dimensions. We assume the fixed point is describe…
Comments on epsilon expansion of the O model with boundary
Tatsuma Nishioka, Yoshitaka Okuyama, Soichiro Shimamori
The O vector model in the presence of a boundary has a non-trivial fixed point in dimensions and exhibits critical behaviors described by boundary conformal field theo…
Method of images in defect conformal field theories
Tatsuma Nishioka, Yoshitaka Okuyama, Soichiro Shimamori
We propose a prescription for describing correlation functions in higher-dimensional defect conformal field theories (DCFTs) by those in ancillary conformal field theories (CFTs) w…