6 papers
Entanglement in Presence of Topological Interfaces and Dualities
Christian Northe, Riccardo Poletti, Paolo Rossi
Entanglement through interfaces has attracted considerable attention in 2d conformal field theory (CFT). However, it is known that field-theoretic predictions based on the existing…
Entanglement Through Topological Defects: Reconciling Theory with Numerics
Christian Northe, Paolo Rossi
Present theoretical predictions for the entanglement entropy through topological defects are violated by numerical simulations. In order to resolve this, we introduce a paradigm sh…
Fermion Parity Resolution of Entanglement
Christian Northe
Entanglement is analyzed in the Majorana fermion conformal field theory (CFT) in the vacuum, in the fermion state, and in states built from conformal interfaces. In the boundary-st…
Young Researchers School 2024 Maynooth: Lectures on CFT, BCFT and DCFT
Christian Northe
These notes were presented at the Young Researchers School (YRS) in Maynooth in April 2024 and provide an introduction to Conformal Field Theory CFT, Boundary Conformal Field Theor…
Spread complexity for the planar limit of holography
Rathindra N. Das, Saskia Demulder, Johanna Erdmenger +1
Complexity is a fundamental characteristic of states within a quantum system. Its use is however mostly limited to bosonic systems, inhibiting its present applicability to supersym…
Entanglement spectra from holography
Stefano Baiguera, Shira Chapman, Christian Northe +2
The entanglement spectrum of a bipartite quantum system is given by the distribution of eigenvalues of the modular Hamiltonian. In this work, we compute the entanglement spectrum i…