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 …

Complexity growth of operators in the SYK model and in JT gravity

SK Jian, B Swingle, ZY **an - Journal of High Energy Physics, 2021 - Springer
A bstract The concepts of operator size and computational complexity play important roles in
the study of quantum chaos and holographic duality because they help characterize the …

Anisotropic star models in the context of vanishing complexity

C Arias, E Contreras, E Fuenmayor, A Ramos - Annals of Physics, 2022 - Elsevier
We use the definition of complexity for static and self–gravitating objects to build up three
physical general relativistic anisotropic models fulfilling the vanishing complexity condition …

The multi-faceted inverted harmonic oscillator: Chaos and complexity

A Bhattacharyya, W Chemissany, SS Haque… - SciPost Physics …, 2021 - scipost.org
The harmonic oscillator is the paragon of physical models; conceptually and computationally
simple, yet rich enough to teach us about physics on scales that span classical mechanics to …

From CFTs to theories with Bondi-Metzner-Sachs symmetries: Complexity and out-of-time-ordered correlators

A Banerjee, A Bhattacharyya, P Drashni, S Pawar - Physical Review D, 2022 - APS
We probe the contraction from 2 d relativistic CFTs to theories with Bondi-Metzner-Sachs
(BMS) symmetries, or equivalently conformal Carroll symmetries, using diagnostics of …

Complexity growth in integrable and chaotic models

V Balasubramanian, M DeCross, A Kar, YC Li… - Journal of High Energy …, 2021 - Springer
A bstract We use the SYK family of models with N Majorana fermions to study the complexity
of time evolution, formulated as the shortest geodesic length on the unitary group manifold …

Uncharged and charged anisotropic like-Durgapal stellar models with vanishing complexity

E Contreras, E Fuenmayor, G Abellán - The European Physical Journal C, 2022 - Springer
In this work we use the vanishing complexity factor as a supplementary condition to
construct uncharged and charged like-Durgapal models. We provide the g tt component of …

[HTML][HTML] Circuit complexity from cosmological islands

S Choudhury, S Chowdhury, N Gupta, A Mishara… - Symmetry, 2021 - mdpi.com
Recently, in various theoretical works, path-breaking progress has been made in recovering
the well-known page curve of an evaporating black hole with quantum extremal islands …

Towards complexity in de Sitter space from the doubled-scaled Sachdev-Ye-Kitaev model

SE Aguilar-Gutierrez - Journal of High Energy Physics, 2024 - Springer
A bstract How can we define complexity in dS space from microscopic principles? Based on
recent developments pointing towards a correspondence between a pair of double-scaled …

Rise of cosmological complexity: Saturation of growth and chaos

A Bhattacharyya, S Das, SS Haque, B Underwood - Physical Review Research, 2020 - APS
We compute the circuit complexity of scalar curvature perturbations on Friedmann-Lemaître-
Robertson-Walker cosmological backgrounds with a fixed equation of state w using the …