Cavity Spectroscopy for Strongly Correlated Systems

Embedding materials in optical cavities has emerged as an intriguing perspective for controlling quantum materials, but a key challenge lies in measuring properties of the embedded matter. Here, we propose a framework for probing strongly correlated cavity-embedded materials through direct measureme...

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Bibliographic Details
Published inarXiv.org
Main Authors Grunwald, Lukas, Emil Viñas Boström, Mark Kamper Svendsen, Kennes, Dante M, Rubio, Angel
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 28.10.2024
Subjects
Correlation
Dynamic characteristics
Embedding
Holes
Optical properties
Optics
Phase transitions
Photons
Spin dynamics
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Summary:Embedding materials in optical cavities has emerged as an intriguing perspective for controlling quantum materials, but a key challenge lies in measuring properties of the embedded matter. Here, we propose a framework for probing strongly correlated cavity-embedded materials through direct measurements of cavity photons. We derive general relations between photon and matter observables inside the cavity, and show how these can be measured via the emitted photons. As an example, we demonstrate how the entanglement phase transition of an embedded H\(_2\) molecule can be accessed by measuring the cavity photon occupation, and showcase how dynamical spin correlation functions can be accessed by measuring dynamical photon correlation functions. Our framework provides an all-optical method to measure static and dynamic properties of cavity-embedded materials.
ISSN:2331-8422