3 papers
cond-mat.stat-mech2026
Extracting Boundary Conformal Data from Periodic Non-Hermitian Critical Chains
Yifan Liu, Haruki Shimizu, Dongchang Liu +1
Boundary conformal field theory (BCFT) contains universal data that are usually accessed microscopically by imposing spatial boundaries on the lattice. In non-Hermitian many-body s…
cond-mat.stat-mech2025
Complex entanglement entropy for complex conformal field theory
Haruki Shimizu, Kohei Kawabata
Conformal field theory underlies critical ground states of quantum many-body systems. While conventional conformal field theory is associated with positive central charges, nonunit…
cond-mat.str-el2024
Finite-size corrections to the energy spectra of gapless one-dimensional systems in the presence of boundaries
Yifan Liu, Haruki Shimizu, Atsushi Ueda +1
We present the finite-size scaling theory of one-dimensional quantum critical systems in the presence of boundaries. While the finite-size spectrum in the conformal limit, namely o…