activity
20232026
most citedConstraining braneworlds with entanglement entropy

21 citations · 32 across the 4 of their papers we have counts for

collaborators

6 papers

hep-th2026

A Holographic Open Quantum System

Ignacio Quiroz Vargas, Merna Youssef

We construct a holographic open quantum system by coupling two CFTs through a double trace deformation and tracing out the bath degrees of freedom within the Schwinger-Keldysh form…

hep-th2025

Dissipation in Open Holography

Andreas Karch, Merna Youssef

We exploit the holographic realization of a conformal theory coupled to an external bath realized via a double trace deformation and its gravity dual in terms of transparent bounda…

hep-th2025

The late time ramp from chord diagrams in the double-scaled SYK model

Amir Raz, Merna Youssef

We compute the ramp of the spectral form factor analytically from chord diagrams in double scaled SYK. We map the double-trace correlator to a sum of single trace two-point functio…

hep-th2023

AdS Higgs mechanism from double trace deformed CFT

Andreas Karch, Mianqi Wang, Merna Youssef

Explicit breaking of a global symmetry in a conformal field theory is holographically dual to giving mass to a gauge field living in AdS via the Higgs mechanism. We show that if th…

hep-th2023★ 21 cited

Constraining braneworlds with entanglement entropy

Hao Geng, Andreas Karch, Carlos Perez-Pardavila +4

We propose swampland criteria for braneworlds viewed as effective field theories of defects coupled to semiclassical gravity. We do this by exploiting their holographic interpretat…

hep-th2023★ 11 cited

Subregion Entropy for the Doubly Holographic Global Black String

Andreas Karch, Carlos Perez-Pardavila, Marcos Riojas +1

We study the growth of entanglement entropy in a doubly holographic model of gravity for a spherical AdS black hole. Compared to previous work, which was limited to the case of pla…