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Updated: Oct 29, 2025
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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Interferometric spectroscopy with quantum light: Revealing out-of-time-ordering correlators
Shahaf Asban1, Konstantin E Dorfman2, Shaul Mukamel1
1Department of Chemistry and Physics & Astronomy, University of California, Irvine, California 92697-2025, USA.
The Journal of Chemical Physics
|July 9, 2021
Summary
Quantum light in nonlinear spectroscopy uses interferometers to control light-matter interactions. This allows for the recovery of quantum information and reveals information scrambling via out-of-time-ordering correlators (OTOCs).
Area of Science:
- Quantum Optics
- Nonlinear Spectroscopy
- Quantum Information Science
Background:
- Interference of electromagnetic fields with matter can lead to constructive or destructive coupling sequences.
- Quantum fields do not commute, making quantum light signals sensitive to the order of light-matter interactions.
Purpose of the Study:
- To survey the use of interferometric elements in nonlinear spectroscopy with quantum light.
- To identify quantum information obtainable by controlling pathway contributions in quantum light-matter interactions.
- To propose experimental schemes for recovering this quantum information.
Main Methods:
- Utilizing interferometric elements within nonlinear spectroscopy setups employing quantum light.
- Analyzing the sensitivity of quantum light signals to the order of light-matter coupling sequences.
- Investigating nonlinear quantum response functions, including out-of-time-ordering matter correlators (OTOCs).
Main Results:
- Demonstrated that controlled interference can selectively enhance or suppress specific microscopic coupling histories.
- Showcased how quantum information is imprinted by the order of light-matter interactions.
- Highlighted the role of OTOCs in revealing information scrambling, particularly with ultrafast pulse sequences.
Conclusions:
- Interferometric control in quantum nonlinear spectroscopy offers a pathway to extract valuable quantum information.
- OTOCs are crucial for understanding information dynamics in quantum systems, with applications spanning physics.
- The study provides experimental strategies for harnessing these quantum phenomena.
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