Related Experiment Video
Updated: May 5, 2026
Fixed Target Serial Data Collection at Diamond Light Source
Published on: February 26, 2021
On-chip manipulation of single photons from a diamond defect
J E Kennard1, J P Hadden, L Marseglia
1H. H. Wills Physics Laboratory & Department of Electrical and Electronic Engineering, Centre for Quantum Photonics, University of Bristol, Merchant Venturers Building, Woodland Road, Bristol BS8 1UB, United Kingdom and National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, United Kingdom.
Researchers demonstrate coherent manipulation of single photons from a diamond color center using integrated photonic circuits. This work verifies wave-particle duality, a crucial step for quantum information science.
Area of Science:
- Quantum Information Science
- Photonics
- Quantum Optics
Background:
- Operating reconfigurable quantum circuits with single photon sources is a key goal.
- Photonic quantum information science and technology relies on precise control of single photons.
Purpose of the Study:
- To demonstrate coherent manipulation of single photons emitted from a chromium related color center in diamond.
- To verify wave-particle duality using integrated photonic devices.
Main Methods:
- Utilized an integrated waveguide device with directional couplers.
- Employed a reconfigurable thermal phase controller to manipulate single photons.
- Observed interference patterns and autocorrelation functions of photons from a diamond color center.
Main Results:
- Achieved coherent manipulation of single photons from the chromium related center.
- Observed a wavelike interference pattern, confirming wave nature.
- Measured particlelike sub-Poissonian autocorrelation functions, confirming particle nature.
Conclusions:
- Demonstrated successful operation of reconfigurable quantum circuits with single photon sources.
- Verified wave-particle duality for single photons emitted from a diamond color center.
- Advanced the development of photonic quantum information processing.
