Quantum computational complexity from quantum information to black holes and back

S Chapman, G Policastro - The European Physical Journal C, 2022 - Springer
Quantum computational complexity estimates the difficulty of constructing quantum states
from elementary operations, a problem of prime importance for quantum computation …

Information transfer with a gravitating bath

H Geng, A Karch, C Perez-Pardavila, S Raju… - SciPost Physics, 2021 - scipost.org
Late-time dominance of entanglement islands plays a critical role in addressing the
information paradox for black holes in AdS coupled to an asymptotic non-gravitational bath …

Quantum extremal islands made easy. Part III. Complexity on the brane

J Hernandez, RC Myers, SM Ruan - Journal of High Energy Physics, 2021 - Springer
A bstract We examine holographic complexity in the doubly holographic model introduced in
[1, 2] to study quantum extremal islands. We focus on the holographic complexity= volume …

Entanglement entropy in a holographic moving mirror and the Page curve

I Akal, Y Kusuki, N Shiba, T Takayanagi, Z Wei - Physical review letters, 2021 - APS
We calculate the time evolution of entanglement entropy in two-dimensional conformal field
theory with a moving mirror. For a setup modeling Hawking radiation, we obtain a linear …

Islands and complexity of eternal black hole and radiation subsystems for a doubly holographic model

A Bhattacharya, A Bhattacharyya, P Nandy… - Journal of High Energy …, 2021 - Springer
A bstract We study the entanglement islands and subsystem volume complexity
corresponding to the left/right entanglement of a conformal defect in d-dimensions in …

Bath deformations, islands, and holographic complexity

A Bhattacharya, A Bhattacharyya, P Nandy, AK Patra - Physical Review D, 2022 - APS
Considering a doubly holographic model, we study the evolution of holographic subregion
complexity corresponding to deformations of the bath state by a relevant scalar operator …

Islands in charged linear dilaton black holes

B Ahn, SE Bak, HS Jeong, KY Kim, YW Sun - Physical Review D, 2022 - APS
We investigate the Page curve for a nonstandard black hole which is asymptotically
nonflat/AdS/dS. For this purpose, we apply the island prescription to the charged linear …

Holographic BCFTs and communicating black holes

H Geng, S Lüst, RK Mishra, D Wakeham - Journal of High Energy Physics, 2021 - Springer
A bstract We study the AdS/BCFT duality between two-dimensional conformal field theories
with two boundaries and three-dimensional anti-de Sitter space with two Karch-Randall …

Probing Hawking radiation through capacity of entanglement

K Kawabata, T Nishioka, Y Okuyama… - Journal of High Energy …, 2021 - Springer
A bstract We consider the capacity of entanglement in models related with the gravitational
phase transitions. The capacity is labeled by the replica parameter which plays a similar role …

Page curves for a family of exactly solvable evaporating black holes

X Wang, R Li, J Wang - Physical Review D, 2021 - APS
We study the entanglement entropy of a one-parameter family of exactly solvable gravities in
the two-dimensional asymptotically flat space. The islands and Page curves of eternal …