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Boosting the secret key rate in a shared quantum and classical fibre communication system
Davide Bacco, Beatrice Da Lio, Daniele Cozzolino +14
During the last 20 years, the advance of communication technologies has generated multiple exciting applications. However, classical cryptography, commonly adopted to secure curren…
Robust entanglement distribution via telecom fibre assisted by an asynchronous counter-propagating laser light
Koichiro Miyanishi, Yoshiaki Tsujimoto, Rikizo Ikuta +7
Distributing entangled photon pairs over noisy channels is an important task for various quantum information protocols. Encoding an entangled state in a decoherence-free subspace (…
Two-photon Quantum Interference and Entanglement at 2 μm
Shashi Prabhakar, Taylor Shields, Adetunmise Dada +12
Quantum-enhanced optical systems operating within the 2- to 2.5-m spectral region have the potential to revolutionize emerging applications in communications, sensing, and metro…
Heralded amplification of nonlocality via entanglement swapping for long-distance device-independent quantum key distribution
Yoshiaki Tsujimoto, Chenglong You, Kentaro Wakui +7
To realize the practical implementation of device-independent quantum key distribution~(DIQKD), the main difficulty is that its security relies on the detection-loophole-free viola…
Frequency-multiplexed photon pairs over 1000 modes from a quadratic nonlinear optical waveguide resonator with a singly-resonant configuration
Rikizo Ikuta, Ryoya Tani, Masahiro Ishizaki +5
We demonstrate a frequency multiplexed photon pair generation based on a quadratic nonlinear optical waveguide inside a cavity which confines only signal photons without confining…