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Holographic Duals of Inhomogeneous Systems: The Rainbow Chain and the Sine-Square Deformation Model
Ian MacCormack, Aike Liu, Masahiro Nozaki +1
A holographic dual description of inhomogeneous systems is discussed. Notably, finite temperature results for the entanglement entropy in both the rainbow chain and the SSD model a…
Signature of quantum chaos in operator entanglement in 2d CFTs
Laimei Nie, Masahiro Nozaki, Shinsei Ryu +1
We study operator entanglement measures of the unitary evolution operators of (1+1)-dimensional conformal field theories (CFTs), aiming to uncover their scrambling and chaotic beha…
Boundary and Defect CFT: Open Problems and Applications
Natan Andrei, Agnese Bissi, Matthew Buican +18
Proceedings of the workshop "Boundary and Defect Conformal Field Theory: Open Problems and Applications," Chicheley Hall, Buckinghamshire, UK, 7-8 Sept. 2017.
Finite-temperature entanglement negativity of free fermions
Hassan Shapourian, Shinsei Ryu
The entanglement entropy of free fermions with a Fermi surface is known to obey a logarithmic scaling and violate the area law in all dimensions. Here, we would like to see how tem…
Entanglement hamiltonian evolution during thermalization in conformal field theory
Xueda Wen, Shinsei Ryu, Andreas W. W. Ludwig
In this work, we study the time evolution of the entanglement hamiltonian during the process of thermalization in a (1+1)-dimensional conformal field theory (CFT) after a quantum q…
Entanglement negativity of fermions: monotonicity, separability criterion, and classification of few-mode states
Hassan Shapourian, Shinsei Ryu
We study quantum information aspects of the fermionic entanglement negativity recently introduced in [Phys. Rev. B 95, 165101 (2017)] based on the fermionic partial transpose. In p…