8 papers · 1 filter
Multi-parameter two-photon polarimetry at the quantum limit
Joseph Niblo, Luca Maggio, Russell M. J. Brooks +3
Photonic quantum metrology has demonstrated advantages in precision and resource efficiency for a wide range of applications, with several schemes approaching the fundamental quant…
Decoy-state quantum key distribution over 227 km with a frequency-converted telecom single-photon source
Frederik Brooke Barnes, Roberto G. Pousa, Christopher L. Morrison +7
We implement a decoy-state quantum key distribution scheme using a telecom C-band single-emitter source. The decoy states are created by varying the optical excitation of the quant…
Quantum-private distributed sensing
Joseph Ho, Jonathan W. Webb, Russell M. J. Brooks +3
Quantum networks can enhance both security and privacy conditions for multi-user communication, delegated computation, and distributed sensing tasks. An example quantum protocol is…
Quantum-limited optical delay sensing across an enhanced dynamic range by frequency-resolving two-photon interference
Russell M. J. Brooks, Luca Maggio, Thomas Jaeken +4
Optical sensing schemes that rely on two-photon interference provide a powerful platform for precision metrology, although they are inherently constrained by a trade-off between dy…
Guarantees on the structure of experimental quantum networks
Andrés Ulibarrena, Jonathan W. Webb, Alexander Pickston +3
Quantum networks connect and supply a large number of nodes with multi-party quantum resources for secure communication, networked quantum computing and distributed sensing. As the…
Purifying quantum-dot light in a coherent frequency interface
Fabrizio Chiriano, Christopher L. Morrison, Joseph Ho +2
Quantum networks typically operate in the telecom wavelengths to take advantage of low-loss transmission in optical fibres. However, bright quantum dots (QDs) emitting highly indis…