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Complete three photon Hong-Ou-Mandel interference at a three port device
Optics Express
|July 21, 2015
Summary
Researchers demonstrate complete destructive interference for three indistinguishable photons using a novel three-port device. This quantum interference generalizes the Hong-Ou-Mandel effect and enables the generation of higher-dimensional entanglement.
Area of Science:
- Quantum optics
- Quantum information science
- Photonics
Background:
- The Hong-Ou-Mandel (HOM) effect demonstrates quantum interference of two indistinguishable photons.
- Extending HOM interference to more than two photons is crucial for advanced quantum technologies.
Purpose of the Study:
- To investigate the possibility of complete destructive interference for three indistinguishable photons.
- To generalize the HOM effect to a three-port device and explore its potential for entanglement generation.
Main Methods:
- Analysis based on the mathematical framework of SU(3) transformations.
- Theoretical modeling of three-photon interference on a three-port device.
Main Results:
- Demonstrated complete destructive interference of three indistinguishable photons for a wide range of device parameters.
- Identified the physical origin of interference through contributions from different quantum paths.
- Showcased the generation of higher-dimensional entanglement (qudit entanglement) from the device.
Conclusions:
- The proposed three-port device enables a generalized three-photon HOM interference.
- The system offers a novel platform for generating various forms of entangled states of qudits.
- This work differs from symmetric beam splitters, which do not exhibit three-photon HOM interference.
