Geometry and non-adiabatic response in quantum and classical systems

M Kolodrubetz, D Sels, P Mehta, A Polkovnikov - Physics Reports, 2017 - Elsevier
In these lecture notes, partly based on a course taught at the Karpacz Winter School in
March 2014, we explore the close connections between non-adiabatic response of a system …

Revisiting thermodynamic topology of Hawking-Page and Davies type phase transitions

B Hazarika, NJ Gogoi, P Phukon - Journal of High Energy Astrophysics, 2025 - Elsevier
In this work, we propose a common vector field to study the thermodynamic topology of the
Davies type and Hawking-Page phase transitions. Existing literature has shown that …

Information geometric methods for complexity

D Felice, C Cafaro, S Mancini - Chaos: An Interdisciplinary Journal of …, 2018 - pubs.aip.org
Describing and, to a certain extent, understanding the concept of complexity has been
investigated in a variety of research fields. Various ad hoc formal definitions and …

Complexity in two-point measurement schemes

A Gill, K Pal, K Pal, T Sarkar - Physical Review B, 2024 - APS
We show that the characteristic function of the probability distribution associated with the
change of an observable in a two-point measurement protocol with a perturbation can be …

Geodesics in geometrothermodynamics (GTD) type II geometry of 4D asymptotically anti-de-Sitter black holes

NJ Gogoi, GK Mahanta, P Phukon - The European Physical Journal Plus, 2023 - Springer
In this work, we study the thermodynamic geodesics of 4D asymptotically anti-de Sitter black
holes in the context of the geometrothermodynamics (GTD) type II metric. We construct GTD …

Complexity and information geometry in the transverse model

N Jaiswal, M Gautam, T Sarkar - Physical Review E, 2021 - APS
We study Nielsen complexity and Fubini-Study complexity for the transverse XY spin chain
and establish their nonanalyticity at the critical lines. We obtain the scaling behavior of both …

Quantum geometric tensor and quantum phase transitions in the Lipkin-Meshkov-Glick model

D Gutiérrez-Ruiz, D Gonzalez, J Chávez-Carlos… - Physical Review B, 2021 - APS
We study the quantum metric tensor and its scalar curvature for a particular version of the
Lipkin-Meshkov-Glick model. We build the classical Hamiltonian using Bloch coherent states …

Thermodynamics of Rotating AdS black holes in Kaniadakis statistics

B Hazarika, A Bhattacharjee, P Phukon - arXiv preprint arXiv:2408.08325, 2024 - arxiv.org
In this study, we advance the understanding of thermodynamic properties and phase
transitions in rotating anti-de Sitter (AdS) black holes by applying the Kaniadakis (KD) …

Information geometry and the renormalization group

R Maity, S Mahapatra, T Sarkar - Physical Review E, 2015 - APS
Information theoretic geometry near critical points in classical and quantum systems is well
understood for exactly solvable systems. Here, we show that renormalization group flow …

Restricted thermodynamic fluctuations and the Ruppeiner geometry of black holes

A Sahay - Physical Review D, 2017 - APS
Thermodynamic fluctuation metrics in Ruppeiner's formalism are worked out for Kerr-AdS
black holes in the extended state space. The implications of constraints upon the state space …