69 citations · 202 across the 6 of their papers we have counts for
7 papers
Experimental investigation of partially entangled states for device-independent randomness generation and self-testing protocols
S. Gómez, A. Mattar, I. Machuca +5
Previous theoretical works showed that all pure two-qubit entangled states can generate one bit of local randomness and can be self-tested through the violation of proper Bell ineq…
Device-independent quantum key distribution with single-photon sources
Jan Kołodyński, Alejandro Máttar, Paul Skrzypczyk +4
Device-independent quantum key distribution protocols allow two honest users to establish a secret key with minimal levels of trust on the provider, as security is proven without a…
Towards an equivalence between maximal entanglement and maximal quantum nonlocality
Victoria Lipinska, Florian Curchod, Alejandro Máttar +1
While all bipartite pure entangled states are known to generate correlations violating a Bell inequality, and are therefore nonlocal, the quantitative relation between pure-state e…
Experimental nonlocality-based randomness generation with non-projective measurements
S. Gómez, A. Mattar, E. S. Gómez +4
We report on an optical setup generating more than one bit of randomness from one entangled bit (i.e. a maximally entangled state of two-qubits). The amount of randomness is certif…
Frequency-Bin Entanglement of Ultra-Narrow Band Non-Degenerate Photon Pairs
Daniel Rieländer, Andreas Lenhard, Osvaldo Jimenez +5
We demonstrate frequency-bin entanglement between ultra-narrowband photons generated by cavity enhanced spontaneous parametric down conversion. Our source generates photon pairs in…
Implementations for Device-Independent Quantum Key Distribution
Alejandro Máttar, Antonio Acín
Device-independent quantum key distribution (DIQKD) generates a secret key among two parties in a provably secure way without making assumptions about the internal working of the d…
Hermitian and non-Hermitian formulations of the time evolution of quantum decay
Gastón García-Calderón, Alejandro Máttar, Jorge Villavicencio
This work discusses Hermitian and non-Hermitian formulations for the time evolution of quantum decay, that involve respectively, continuum wave functions and resonant states, to sh…