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Updated: Aug 24, 2025
07:56
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
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Radiative emission of polaritons controlled by light-induced geometric phase
Csaba Fábri1,2, Gábor J Halász3, Lorenz S Cederbaum4
1MTA-ELTE Complex Chemical Systems Research Group, P.O. Box 32, H-1518 Budapest 112, Hungary. ficsaba@staff.elte.hu.
Chemical Communications (Cambridge, England)
|October 26, 2022
Summary
Hybrid light-matter states called polaritons exhibit light-induced conical intersections (LICIs). These LICIs control ultrafast radiative emission from molecular polaritons, offering new insights into light-matter interactions.
Area of Science:
- Quantum optics
- Molecular physics
- Condensed matter theory
Background:
- Polaritons are hybrid light-matter states formed in optical or plasmonic nanocavities.
- These states significantly alter the properties of the constituent matter.
- Polaritons decay via experimentally accessible radiative emission.
Purpose of the Study:
- Investigate the influence of light-induced conical intersections (LICIs) on molecular polariton dynamics.
- Determine how LICIs affect the ultrafast radiative emission from polaritons.
- Develop a theoretical framework to compute polariton emission signals.
Main Methods:
- Theoretical modeling of molecular polaritons in nanocavities.
- Analysis of light-induced conical intersections (LICIs) in quantum systems.
- Augmentation of the Born-Oppenheimer approximation with a geometric phase term.
Main Results:
- Light-induced conical intersections (LICIs) dramatically influence molecular polariton nuclear dynamics.
- Ultrafast radiative emission from the lower polariton is controlled by the geometric phase imposed by the LICI.
- A method to compute polariton emission signals by including geometric phase is established.
Conclusions:
- Geometric phase from LICIs is a key factor in controlling polariton emission.
- The augmented Born-Oppenheimer approximation provides accurate computation of polariton signals.
- This work deepens the understanding of light-matter interactions and quantum dynamics in polaritonic systems.
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