3 papers
hep-th2025
Transmission Coefficients from Phantom Currents
Yuma Furuta, Yuya Kusuki, Toshiki Onagi
A representative quantity that characterizes the dynamics of conformal interfaces is the transmission coefficient, which is defined through correlation functions of the stress tens…
hep-th2025
Homomorphism, substructure, and ideal: Elementary but rigorous aspects of renormalization group or hierarchical structure of topological orders
Yoshiki Fukusumi, Yuma Furuta
We propose a general quantum Hamiltonian formalism of a renormalization group (RG) flow with an emphasis on generalized symmetry by interpreting the elementary relationship between…
hep-th2024
On the classification of duality defects in compact boson CFTs with a discrete group orbifold
Yuma Furuta
We propose a novel approach to exploring duality defects in the compact boson conformal field theory (CFT). This study is motivated by the desire to classify categorical symm…