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Entanglement Phase Structure of a Holographic BCFT in a Black Hole Background
Hao Geng, Andreas Karch, Carlos Perez-Pardavila +4
We compute holographic entanglement entropy for subregions of a BCFT thermal state living on a nongravitating black hole background. The system we consider is doubly holographic an…
Interacting Fractons in 2+1-Dimensional Quantum Field Theory
Jacques Distler, Murtaza Jafry, Andreas Karch +1
We analyze, in perturbation theory, a theory of weakly interacting fractons and non-relativistic fermions in a 2+1 dimensional Quantum Field Theory. In particular we compute the 1-…
Spontaneously Broken Subsystem Symmetries
Jacques Distler, Andreas Karch, Amir Raz
We investigate the spontaneous breaking of subsystem symmetries directly in the context of continuum field theories by calculating the correlation function of charged operators. Ou…
Fractons and exotic symmetries from branes
Hao Geng, Shamit Kachru, Andreas Karch +2
The emerging study of fractons, a new type of quasi-particle with restricted mobility, has motivated the construction of several classes of interesting continuum quantum field theo…
Inconsistency of Islands in Theories with Long-Range Gravity
Hao Geng, Andreas Karch, Carlos Perez-Pardavila +4
In ordinary gravitational theories, any local bulk operator in an entanglement wedge is accompanied by a long-range gravitational dressing that extends to the asymptotic part of th…
Universal relations for holographic interfaces
Andreas Karch, Zhu-Xi Luo, Hao-Yu Sun
We study the entanglement entropy in 1+1 dimensional conformal field theories in the presence of interfaces from a holographic perspective. Compared with the well-known case of bou…