Spectral Hong-Ou-Mandel Interference between Independently Generated Single Photons for Scalable Frequency-Domain Quantum Processing

authored by
Anahita Khodadad Kashi, Michael Kues
Abstract

The frequency degree-of-freedom, being compatible with well-developed omnipresent optical telecommunication infrastructure, allows for stable, controllable and scalable encoding of quantum information [1]. The HOM effect between independent photons, as a central building block to, e.g., quantum key distribution (QKD), quantum teleportation and entanglement swapping, has been mainly employed within the spatial domain [2]. A key element yet missing to enable scalable and thus real-world frequency-based implementation of quantum computation and non-classical communication, is the demonstration of Hong-Ou-Mandel (HOM) interference between independently created photons of different frequencies. To date, spectral bosonic HOM interference between single photons, produced out of the same continuous-wave (cw)-excited spontaneous parametric down conversion (SPDC) process has been demonstrated [3] , which however does not allow scalability due to the spectral impurity inherent to the proposed approach.

Organisation(s)
Hannover Centre for Optical Technologies (HOT)
Institute of Photonics
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
Type
Conference contribution
Publication date
2021
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics
Electronic version(s)
https://doi.org/10.1109/CLEO/Europe-EQEC52157.2021.9542329 (Access: Closed)