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11 papers · 2 filters
Five measurement bases determine pure quantum states on any dimension
D. Goyeneche, G. Cañas, S. Etcheverry +4
A long standing problem in quantum mechanics is the minimum number of observables required for the characterisation of unknown pure quantum states. The solution to this problem is…
Safeguarding Quantum Key Distribution through Detection Randomization
Thiago Ferreira da Silva, Gustavo C. do Amaral, Guilherme B. Xavier +2
We propose and experimentally demonstrate a scheme to render the detection apparatus of a Quantum Key Distribution system immune to the main classes of hacking attacks in which the…
Impact of Raman scattered noise from multiple telecom channels on fiber-optic quantum key distribution systems
Thiago Ferreira da Silva, Guilherme B. Xavier, Guilherme P. Temporão +1
In this paper we analyze the impact of the spontaneous Raman scattered noise generated from multiple optical classical channels on a single quantum key distribution channel, all wi…
Quantum randomness protected against detection loophole attacks
Piotr Mironowicz, Gustavo Cañas, Jaime Cariñe +6
Device and semi-device independent quantum randomness generators (DI- and SDI-QRNGs) are crucial for applications requiring private randomness. However, they are vulnerable to dete…
Quantum key distribution with untrusted detectors
P. Gonzalez, L. Rebon, T. Ferreira da Silva +6
Side-channel attacks currently constitute the main challenge for quantum key distribution (QKD) to bridge theory with practice. So far two main approaches have been introduced to a…
Applying the simplest Kochen-Specker set for quantum information processing
Gustavo Cañas, Mauricio Arias, Sebastián Etcheverry +4
Kochen-Specker (KS) sets are key tools for proving some fundamental results in quantum theory and also have potential applications in quantum information processing. However, so fa…