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Pre-fixed Threshold Real Time Selection Method in Free-space Quantum Key Distribution
Wenyuan Wang, Feihu Xu, Hoi-Kwong Lo
Free-space Quantum key distribution (QKD) allows two parties to share a random key with unconditional security, between ground stations, between mobile platforms, and even in satel…
Experimental study of quantum random number generator based on two independent lasers
Shi-Hai Sun, Feihu Xu
Quantum random number generator (QRNG) can produce true randomness by utilizing the inherent probabilistic nature of quantum mechanics. Recently, the spontaneous-emission quantum p…
Characterizing multi-photon quantum interference with practical light sources and threshold single-photon detectors
Álvaro Navarrete, Wenyuan Wang, Feihu Xu +1
The experimental characterization of multi-photon quantum interference effects in optical networks is essential in many applications of photonic quantum technologies, which include…
Quantum-memory-assisted multi-photon generation for efficient quantum information processing
Fumihiro Kaneda, Feihu Xu, Joseph Chapman +1
In the last two decades, many quantum optics experiments have demonstrated small-scale quantum information processing applications with several photons. Beyond such proof-of-princi…
Efficient generation and spectral characterization of spectrally factorable biphotons
Changchen Chen, Cao Bo, Murphy Yuezhen Niu +4
Spectrally unentangled biphotons with high single-spatiotemporal-mode purity are highly desirable for many quantum information processing tasks. We generate biphotons with an infer…