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Ultra-fast real-time quantum random number generator with correlated measurement outcomes and rigorous security certification
Tobias Gehring, Cosmo Lupo, Arne Kordts +6
Quantum random number generators (QRNGs) promise perfectly unpredictable random numbers. However, the security certification of the random numbers in form of a stochastic model oft…
Quantum key distribution with phase-encoded coherent states: Asymptotic security analysis in thermal-loss channels
Panagiotis Papanastasiou, Cosmo Lupo, Christian Weedbrook +1
We consider discrete-alphabet encoding schemes for coherent-state quantum key distribution. The sender encodes the letters of a finite-size alphabet into coherent states whose ampl…
Fundamental limits to quantum channel discrimination
Stefano Pirandola, Riccardo Laurenza, Cosmo Lupo +1
What is the ultimate performance for discriminating two arbitrary quantum channels acting on a finite-dimensional Hilbert space? Here we address this basic question by deriving a g…