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Entropic framework for wave-particle duality in multipath interferometers
Patrick J. Coles
An interferometer - no matter how clever the design - cannot reveal both the wave and particle behavior of a quantum system. This fundamental idea has been captured by inequalities…
Entropic Uncertainty Relations and their Applications
Patrick J. Coles, Mario Berta, Marco Tomamichel +1
Heisenberg's uncertainty principle forms a fundamental element of quantum mechanics. Uncertainty relations in terms of entropies were initially proposed to deal with conceptual sho…
Numerical approach for unstructured quantum key distribution
Patrick J. Coles, Eric M. Metodiev, Norbert Lütkenhaus
Quantum key distribution (QKD) allows for communication with security guaranteed by quantum theory. The main theoretical problem in QKD is to calculate the secret key rate for a gi…
Sifting attacks in finite-size quantum key distribution
Corsin Pfister, Norbert Lütkenhaus, Stephanie Wehner +1
A central assumption in quantum key distribution (QKD) is that Eve has no knowledge about which rounds will be used for parameter estimation or key distillation. Here we show that…
Self-referenced continuous-variable quantum key distribution protocol
Daniel B. S. Soh, Constantin Brif, Patrick J. Coles +4
We introduce a new continuous-variable quantum key distribution (CV-QKD) protocol, self-referenced CV-QKD, that eliminates the need for transmission of a high-power local oscillato…