Quantum information scrambling: from holography to quantum simulators

A Bhattacharyya, LK Joshi, B Sundar - The European Physical Journal C, 2022 - Springer
In this review, we present the ongoing developments in bridging the gap between
holography and experiments. To this end, we discuss information scrambling and models of …

Entanglement phase structure of a holographic BCFT in a black hole background

H Geng, A Karch, C Perez-Pardavila, S Raju… - Journal of High Energy …, 2022 - Springer
A bstract 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 …

Quantum error correction: Noise-adapted techniques and applications

A Jayashankar, P Mandayam - Journal of the Indian Institute of Science, 2023 - Springer
The quantum computing devices of today have tens to hundreds of qubits that are highly
susceptible to noise due to unwanted interactions with their environment. The theory of …

Replica wormholes and entanglement islands in the Karch-Randall braneworld

H Geng - Journal of High Energy Physics, 2025 - Springer
A bstract The Karch-Randall braneworld provides a natural set-up to study the Hawking
radiation from a black hole using holographic tools. Such a black hole lives on a brane and …

From time-reversal symmetry to quantum Bayes' rules

AJ Parzygnat, J Fullwood - PRX Quantum, 2023 - APS
Bayes' rule, P (B| A) P (A)= P (A| B) P (B), is one of the simplest yet most profound,
ubiquitous, and far-reaching results of classical probability theory, with applications in any …

Islands for entanglement negativity in communicating black holes

M Afrasiar, JK Basak, A Chandra, G Sengupta - Physical Review D, 2023 - APS
We obtain the holographic entanglement negativity for bipartite mixed states at a finite
temperature in baths described by conformal field theories dual to configurations involving …

Construction and the ergodicity properties of dual unitary quantum circuits

M Borsi, B Pozsgay - Physical Review B, 2022 - APS
We consider one-dimensional quantum circuits of the brickwork type, where the fundamental
quantum gate is dual unitary. Such models are solvable: the dynamical correlation functions …

Defect extremal surfaces for entanglement negativity

D Basu, H Parihar, V Raj, G Sengupta - Physical Review D, 2023 - APS
We propose a doubly holographic version of the semiclassical island formula for the
entanglement negativity in the framework of the defect AdS/BCFT correspondence where …

Construction and local equivalence of dual-unitary operators: From dynamical maps to quantum combinatorial designs

SA Rather, S Aravinda, A Lakshminarayan - PRX Quantum, 2022 - APS
While quantum circuits built from two-particle dual-unitary (maximally entangled) operators
serve as minimal models of typically nonintegrable many-body systems, the construction …

Bounds on gravitational brane couplings and tomography in AdS3 black hole microstates

JH Lee, D Neuenfeld, A Shukla - Journal of High Energy Physics, 2022 - Springer
A bstract We study information theoretic properties of planar black hole microstates in 2+ 1
dimensional asymptotically anti-de Sitter spacetime, modeled by black holes with an end-of …