17 citations · 18 across the 4 of their papers we have counts for
8 papers
Generalised entanglement wedges in three dimensions
Abhisek Sahu
Generalized entanglement wedges (GWs), proposed by Bousso and Penington for gravitating regions in general spacetimes, share many properties of ordinary entanglement wedges, includ…
Algebraic structure in holographic tensor networks
Abhisek Sahu, Jeremy van der Heijden, Mark Van Raamsdonk +1
In a previous work 2511.21852, we explored the hypothesis that in general theories of quantum gravity, spacetime regions known as generalized entanglement wedges (introduced by Bou…
Factor Code Networks
Abhisek Sahu, Jeremy van der Heijden, Mark Van Raamsdonk +1
For a quantum code defined by an isometry , an operator map is a *-homomorphism from the space of operator…
Algebras for generalized entanglement wedges
Abhisek Sahu, Jeremy van der Heijden, Mark Van Raamsdonk +1
In asymptotically AdS spacetimes, the mathematical structure of the set of entanglement wedges reflects the algebraic structure of the underlying holographic description. For more…
Holographic black hole cosmologies
Abhisek Sahu, Mark Van Raamsdonk
We describe and study a holographic construction of big-bang / big-crunch cosmological spacetimes where the matter consists of a lattice of black holes. The cosmological spacetime…
Singular hypersurfaces and thin shells in cosmology
Abhisek Sahu
We analyse spherically symmetric spacetimes obtained by gluing a cosmological region to a Schwarzschild black hole across a singular co-dimension one hypersurface. Assuming an arbi…
Bubbles of cosmology in AdS/CFT
Abhisek Sahu, Petar Simidzija, Mark Van Raamsdonk
Gravitational effective theories associated with holographic CFTs have cosmological solutions, which are typically big-bang / big-crunch cosmologies. These solutions are not asympt…
Sabotaging the harvesting of correlations from quantum fields
Abhisek Sahu, Irene Melgarejo-Lermas, Eduardo Martín-Martínez
We study the non-perturbative harvesting of classical and quantum correlations between two parties coupled to a quantum field. First, we consider a scenario with an arbitrary numbe…