Magic entropy in hybrid spin-boson systems

Reports on Progress in Physics 2026 Open access

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Authors: Samuel Crew, Ying-Lin Li, Heng-Hsi Li, Po-Yao Chang
DOI: 10.1088/1361-6633/ae413c
Cited by: 1
References: 49

Abstract

We introduce entropic measures to quantify non-classical resource in hybrid spin-boson systems. We discuss the stabiliser Rényi entropy in the framework of phase space quantisation and define an analogous hybrid magic entropy and a mutual magic entropy that capture the distribution of quantum magic across spin and bosonic subsystems. We use these entropic measures to demonstrate two key phenomena: the detection of the superradiant phase transition in the Dicke model and the quantum dynamics of magic in the Jaynes-Cummings model. We develop a Monte Carlo numerical scheme to practically evaluate these entropic measures in interacting many-body systems.

Fields of Study & Subjects

Quantum many-body systems Quantum Information and Cryptography Statistical Mechanics and Entropy

Publication details

Journal / source
Reports on Progress in Physics
Publisher
IOP Publishing
Volume
89
Issue
2
Pages
027602–027602
Publication date
1 February 2026
Language
EN