17 citations · 20 across the 7 of their papers we have counts for
7 papers
Organizing transitions and their cascades: Generalized symmetry enforcement in massless flows or Higgs transitions
Yoshiki Fukusumi, Yuma Furuta
We study the role of generalized symmetry in massless renormalization group flows or Higgs transitions. In particular, we revisit the massless renormalization group flows in unitar…
Complex Conformal Manifolds
Yuma Furuta, Wataru Harada, Yuya Kusuki +1
Complex conformal field theories (CFTs) have recently emerged as essential frameworks for understanding non-Hermitian criticality, weakly first-order phase transitions, and walking…
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…
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…
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…
On the Rationality and the Code Structure of a Narain CFT, and the Simple Current Orbifold
Yuma Furuta
In this paper, we discuss the simple current orbifold of a rational Narain CFT (Narain RCFT). This is a method of constructing other rational CFTs from a given rational CFT, by ``o…
Relation between spectra of Narain CFTs and properties of associated boolean functions
Yuma Furuta
Recently, the construction of Narain CFT from a certain class of quantum error correcting codes has been discovered. In particular, the spectral gap of Narain CFT corresponds to th…