Impossibility of adversarial self-testing and secure sampling

Autor: Akshay Bansal, Atul Singh Arora, Thomas Van Himbeeck, Jamie Sikora

Publikováno v: Physical Review Research, Vol 6, Iss 3, p L032039 (2024)

Self-testing is the task where spatially separated Alice and Bob cooperate to deduce the inner workings of untrusted quantum devices by interacting with them in a classical manner. We examine the task above where Alice and Bob do not trust each other

Externí odkaz: https://doaj.org/article/6b3dcdb841b14b51b02729dfd76b538b

Quantum violations in the Instrumental scenario and their relations to the Bell scenario

Autor: Thomas Van Himbeeck, Jonatan Bohr Brask, Stefano Pironio, Ravishankar Ramanathan, Ana Belén Sainz, Elie Wolfe

Publikováno v: Quantum, Vol 3, p 186 (2019)

The causal structure of any experiment implies restrictions on the observable correlations between measurement outcomes, which are different for experiments exploiting classical, quantum, or post-quantum resources. In the study of Bell nonlocality, t

Externí odkaz: https://doaj.org/article/72dd8f4925c14960a2c059af363d0e5d

Dimension Reduction in Quantum Key Distribution for Continuous- and Discrete-Variable Protocols

Autor: Jie Lin, Twesh Upadhyaya, Thomas Van Himbeeck, Norbert Lütkenhaus

We develop a method to connect the infinite-dimensional description of optical continuous-variable quantum key distribution (QKD) protocols to a finite-dimensional formulation. The secure key rates of the optical QKD protocols can then be evaluated u

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9acbc6e21e86438faf160990d608863d
http://arxiv.org/abs/2101.05799

Self-testing quantum random-number generator based on an energy bound

Autor: Anthony Martin, Stefano Pironio, Thomas Van Himbeeck, Weixu Shi, Jonatan Bohr Brask, Davide Rusca, Nicolas Brunner, Hugo Zbinden

Publikováno v: Physical Review. A, Vol. 100, No 062338 (2019)
Physical Review A, 100 (6
Rusca, D, van Himbeeck, T, Martin, A, Brask, J B, Shi, W, Pironio, S, Brunner, N & Zbinden, H 2019, ' Self-testing quantum random-number generator based on an energy bound ', Physical Review A, vol. 100, no. 6, 062338 . https://doi.org/10.1103/physreva.100.062338
Physical Review A

We introduce a scheme for a self-testing quantum random-number generator and demonstrate it experimentally. Compared to the fully device-independent model, our scheme requires an extra natural assumption, namely, that the mean number of photons of th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7fa1058b905c6f2b237f4de234ff969c
https://archive-ouverte.unige.ch/unige:135134