17 citations · 17 across the 5 of their papers we have counts for
6 papers
A group theoretic calculation of multi-invariants of some stabilizer states
Bartlomiej Czech, Yichen Feng, Jonathan Harper +1
We study multi-invariants---a multi-partite generalization of Renyi entropies---of simple stabilizer states, for an arbitrary replica symmetry group. We develop a group theoretic t…
The Entanglement Wedge Polygon
Kosei Fujiki, Jonathan Harper, Tadashi Takayanagi +1
In this work we consider a particular codimension-1 region of a holographic spacetime which we call the entanglement wedge polygon (EWP). For a pure state and a partition of the bo…
Non-hermitian Density Matrices from Time-like Entanglement and Wormholes
Jonathan Harper, Taishi Kawamoto, Ryota Maeda +2
We extensively explore the connections between time-like entanglement and non-hermitian density matrices in quantum many-body systems. We classify setups where we encounter non-her…
Multi-entropy and the Dihedral Measures at Quantum Critical Points
Jonathan Harper, Ali Mollabashi, Tadashi Takayanagi +1
The multi-entropy and dihedral measures are a class of tractable measures for multi-partite entanglement, which are labeled by the Rényi index (or replica number) as in the Rén…
The -theorem from Strong Subadditivity
Jonathan Harper, Hiroki Kanda, Tadashi Takayanagi +1
We show that strong subadditivity provides a simple derivation of the -theorem for the boundary renormalization group flow in two-dimensional conformal field theories. We work o…
Multi-entropy at low Renyi index in 2d CFTs
Jonathan Harper, Tadashi Takayanagi, Takashi Tsuda
For a static time slice of AdS we describe a particular class of minimal surfaces which form trivalent networks of geodesics. Through geometric arguments we provide evidence th…