Frequency-multiplexed Hong-Ou-Mandel interference
arXiv:2303.09721 · doi:10.1103/PhysRevA.107.032608
Abstract
The implementation of quantum repeaters needed for long-distance quantum communication requires the generation of quantum entanglement distributed among the elementary links. These entanglements must be swapped among the quantum repeaters through Bell-state measurements. This study aims to improve the entanglement generation rate by frequency multiplexing the Bell-state measurements. As a preliminary step of the frequency-multiplexed Bell-state measurements, three frequency modes are mapped to a temporal mode by an atomic frequency comb prepared in ion-doped crystals using a weak coherent state, and Hong-Ou-Mandel interference, which is a measure of the indistinguishability of two inputs, is observed in each frequency mode by coincidence detection. The visibility for all the modes was 40%-42% (theoretically up to 50%). Furthermore, we show that a mixture of different modes is avoided. The present results are connected to frequency-selective Bell-state measurements and therefore frequency-multiplexed quantum repeaters.
arXiv comment9 pages, 6 figures
References in corpus (27)
- Quantum Cryptography
- The Quantum Internet
- Long-distance quantum communication with atomic ensembles and linear optics
- The nitrogen-vacancy colour centre in diamond
- Experimental demonstration of quantum memory for light
- Realization of a multi-node quantum network of remote solid-state qubits
- Distributed Quantum Computation over Noisy Channels
- Multimode quantum memory based on atomic frequency combs
- Quantum Repeaters with Photon Pair Sources and Multi-Mode Memories
- A solid state light-matter interface at the single photon level
- Experimental Demonstration of Blind Quantum Computing
- Sending-or-Not-Sending with Independent Lasers: Secure Twin-Field Quantum Key Distribution Over 509 km
- Spectral multiplexing for scalable quantum photonics using an atomic frequency comb quantum memory and feed-forward control
- Telecom-heralded entanglement between remote multimode solid-state quantum memories
- Quantum storage of entangled telecom-wavelength photons in an erbium-doped optical fibre
- 600 km repeater-like quantum communications with dual-band stabilisation
- Heralded entanglement distribution between two absorptive quantum memories
- Beating the fundamental rate-distance limit in a proof-of-principle quantum key distribution system
- Quantum Storage of Frequency-Multiplexed Heralded Single Photons
- Storage of photonic time-bin qubits for up to 20 ms in a rare-earth doped crystal
- Experimental Blind Quantum Computing for a Classical Client
- Design and Analysis of Communication Protocols for Quantum Repeater Networks
- Experimental study of Hong-Ou-Mandel interference using independent phase randomized weak coherent states
- Ultrabright narrow-band telecom two-photon source for long-distance quantum communication
- Two-photon interference of weak coherent laser pulses recalled from separate solid-state quantum memories
- Coupling of a quantum memory and telecommunication wavelength photons for high-rate entanglement distribution in quantum repeaters
- Single-shot high-resolution identification of discrete frequency modes of single-photon-level optical pulses