Related Experiment Video
Updated: Sep 13, 2025

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
Published on: June 28, 2016
Cavity Spectroscopy for Strongly Correlated Polaritonic Systems
Lukas Grunwald1,2, Emil Viñas Boström2,3, Mark Kamper Svendsen2,4
1RWTH Aachen University, Institut für Theorie der Statistischen Physik, and JARA-Fundamentals of Future Information Technology, 52056 Aachen, Germany.
Researchers developed a new all-optical method to measure properties of quantum materials inside optical cavities. This framework uses cavity photon measurements to probe material behavior, including entanglement and spin correlations.
Area of Science:
- Quantum Optics
- Condensed Matter Physics
- Materials Science
Background:
- Embedding quantum materials in optical cavities offers control but poses measurement challenges.
- Directly probing embedded matter properties is crucial for understanding cavity quantum systems.
Purpose of the Study:
- To propose a framework for probing strongly correlated cavity-embedded materials.
- To establish a method for measuring material properties via cavity photons.
Main Methods:
- Deriving general relations between photon and matter observables.
- Utilizing emitted cavity photons for indirect measurements.
- Analyzing cavity photon occupation and correlation functions.
Main Results:
- Demonstrated access to entanglement phase transitions of embedded H2 molecules via photon occupation.
- Showcased measurement of dynamical spin correlation functions using photon correlation functions.
- Established an all-optical measurement framework.
Conclusions:
- The proposed framework enables all-optical measurement of static and dynamic properties of cavity-embedded materials.
- This method overcomes limitations in directly probing embedded quantum matter.
More Related Videos
09:00Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
Published on: June 28, 2018
05:54Author Spotlight: Non-Invasive Imaging of Complex Bio-Structures Using Polarization-Sensitive Two-Photon Microscopy
Published on: September 8, 2023
Related Concept Videos
NMR Spectroscopy: Spin–Spin Coupling
¹H NMR: Interpreting Distorted and Overlapping Signals
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
Dielectric Polarization in a Capacitor
2D NMR: Homonuclear Correlation Spectroscopy (COSY)
Potential Due to a Polarized Object
UV–Vis Spectroscopy: Molecular Electronic Transitions