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Updated: Jun 8, 2026
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Dynamical Control of Quantum Photon-Photon Interaction with Phase Change Material
Chaojie Wang1, Xutong Li1, Xiuyi Ma1
1Xiamen University, Department of Physics, Xiamen 361005, China.
Physical Review Letters
|June 7, 2026
Summary
Researchers harnessed vanadium dioxide
Area of Science:
- Quantum optics
- Quantum information science
- Condensed matter physics
Background:
- Quantum interference enables advanced quantum information technologies.
- Conventional photon-photon interactions are limited by photon nature and optical elements.
- Loss-induced nonunitary operations offer a new control method.
Purpose of the Study:
- To develop a novel tool for controlling quantum interference.
- To explore photon-photon interactions beyond classical limitations.
- To demonstrate dynamical control of quantum interference using phase change materials.
Main Methods:
- Utilizing the insulator-metal transition of vanadium dioxide (VO2).
- Fabricating an elaborate VO2 thin film.
- Experimentally demonstrating the control of quantum interference.
Main Results:
- Vanadium dioxide thin films enable tunable particle exchange phase responses.
- Dynamical control of photon-photon interactions, including coalescence and anti-coalescence, was achieved.
- The proposed tool effectively unravels essential features of quantum interference.
Conclusions:
- Harnessing VO2 phase transitions offers a new approach for quantum light-matter interactions.
- This method facilitates nonunitary quantum interference for quantum information processing.
- The study provides a concise and powerful tool for controlling quantum interference.
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