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Interference of Temporally Distinguishable Photons Using Frequency-Resolved Detection
Venkata Vikram Orre1,2, Elizabeth A Goldschmidt1,3, Abhinav Deshpande1,4
1Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA.
Physical Review Letters
|October 22, 2019
Summary
Researchers demonstrated quantum interference of three distinguishable photons using frequency. The interference pattern was manipulated by photon delays, showcasing network symmetries and spectral amplitude influences. This work enables reconfigurable boson sampling in the time domain.
Area of Science:
- Quantum optics
- Quantum information science
- Photonics
Background:
- Quantum interference is fundamental to quantum mechanics.
- Multiphoton interference is crucial for quantum information processing and quantum computing.
- Controlling multiphoton interference is key for developing advanced quantum technologies.
Purpose of the Study:
- To demonstrate quantum interference of three distinguishable photons in the frequency domain.
- To show that multiphoton interference patterns can be dynamically controlled via photon delays.
- To explore the potential for reconfigurable boson sampling and multiboson correlation sampling.
Main Methods:
- Utilizing quantum interference of three photons distinguishable in time.
- Resolving photons in the conjugate parameter, frequency.
- Manipulating interference patterns by tuning relative photon delays.
- Employing time-bin entangled photon pairs for time-reversed Hong-Ou-Mandel-like interference.
- Introducing time-varying dispersion with a phase modulator.
Main Results:
- Demonstrated quantum interference of three time-distinguishable photons.
- Showcased dynamic manipulation of multiphoton interference patterns via relative photon delays.
- Observed manifestation of optical network symmetries and spectral amplitude in interference patterns.
- Achieved time-reversed Hong-Ou-Mandel-like interference in spectral correlations.
- Established a platform for dynamically reconfigurable and scalable boson sampling.
Conclusions:
- Quantum interference of distinguishable photons can be controlled in the frequency domain.
- The developed setup allows for dynamic reconfiguration of quantum interference for boson sampling.
- This research paves the way for scalable quantum information processing and advanced photonic quantum computing.
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