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Modern Approach to 2D Conformal Field Theory
Yuya Kusuki
The primary aim of these lecture notes is to introduce the modern approach to two-dimensional conformal field theory (2D CFT). The study of analytical methods in two-dimensional co…
Entanglement asymmetry and symmetry defects in boundary conformal field theory
Yuya Kusuki, Sara Murciano, Hirosi Ooguri +1
A state in a quantum system with a given global symmetry, , can be sensitive to the presence of boundaries, which may either preserve or break this symmetry. In this work, we in…
Multi wavefunction overlap and multi entropy for topological ground states in (2+1) dimensions
Bowei Liu, Junjia Zhang, Shuhei Ohyama +2
Multi-wavefunction overlaps -- generalizations of the quantum mechanical inner product for more than two quantum many-body states -- are valuable tools for studying many-body physi…
Universal Bound on Effective Central Charge and Its Saturation
Andreas Karch, Yuya Kusuki, Hirosi Ooguri +2
The effective central charge (denoted by ) is a measure of entanglement through a conformal interface, while the transmission coefficient (encoded in the coefficien…