7 papers
Experimental Quantum Key Distribution in an Indefinite Causal Order
Yann Valibouse, Martí Cladera-Rosselló, Michael Antesberger +6
In quantum physics the order in which different operations occur can be placed in superposition. The resulting processes have an indefinite causal order and are both of fundamental…
Photon Number Coherence of a Quantum Dot-Cavity System Excited Using the SUPER Scheme
Paul C. A. Hagen, Thomas Bracht, Mathieu Bozzio +4
To fulfill the security requirements of quantum cryptography, photon number coherence (PNC) of single photon sources has recently become an important figure of merit. Quantum dots…
Quantum cryptography beyond key distribution: theory and experiment
Mathieu Bozzio, Claude Crépeau, Petros Wallden +1
Owing to its fundamental principles, quantum theory holds the promise to enhance the security of modern cryptography, from message encryption to anonymous communication, digital si…
Performance of Practical Quantum Oblivious Key Distribution
Mariano Lemus, Peter Schiansky, Manuel Goulão +5
Motivated by the applications of secure multiparty computation as a privacy-protecting data analysis tool, and identifying oblivious transfer as one of its main practical enablers,…
Asymmetric two-photon response of an incoherently driven quantum emitter
Lennart Jehle, Lena M. Hansen, Patrik I. Sund +7
Quantum emitters promise to emit exactly one photon with high probability when pumped by a laser pulse. However, even in ideal systems, re-excitation during a laser pulse causes th…
Quantum cryptography integrating an optical quantum memory
H. Mamann, T. Nieddu, F. Hoffet +6
Developments in scalable quantum networks rely critically on optical quantum memories, which are key components enabling the storage of quantum information. These memories play a p…