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quant-ph2024
Quantum Metrology for Gravitational Wave Astronomy
Roman Schnabel, Nergis Mavalvala, David E. McClelland +1
Einstein's General Theory of Relativity predicts that accelerating mass distributions produce gravitational radiation, analogous to electromagnetic radiation from accelerating char…
quant-ph2024
The gap persistence theorem for quantum multiparameter estimation
Lorcán O. Conlon, Jun Suzuki, Ping Koy Lam +1
One key aspect of quantum metrology, measurement incompatibility, is evident only through the simultaneous estimation of multiple parameters. The symmetric logarithmic derivative C…
quant-ph2024
Comparison of Discrete Variable and Continuous Variable Quantum Key Distribution Protocols with Phase Noise in the Thermal-Loss Channel
Sebastian P. Kish, Patrick J. Gleeson, Angus Walsh +2
Discrete-variable (DV) quantum key distribution (QKD) based on single-photon detectors and sources have been successfully deployed for long-range secure key distribution. On the ot…