16 papers
Rigorous Time-dependent Hamiltonian Learning via Continuous Weak Measurements
Jesús Jiménez-RodrÃguez, Giacomo Franceschetto, Antonio AcÃn +1
Characterizing the Hamiltonian that a quantum processor actually implements is central to calibrating and validating current quantum hardware. Many devices, however, operate with g…
Noise robustness of three outcome Bell certified quantum randomness
Raffaele D'Avino, Ignacio Perito, Piotr Mironowicz +2
We investigate device-independent certification of global randomness based on Bell inequality violations in bipartite scenarios with three outcomes per party. Our goal is to determ…
Bell inequalities tailored to optimal global randomness certification
Ignacio Perito, Raffaele D'Avino, MichaÅ Jung +3
We present two novel families of bipartite Bell inequalities designed to achieve optimal global randomness certification for an arbitrary number of outputs . We first use symmet…
Effective discrete-modulated continuous variable QKD under general attacks
Mariana Navarro, Antonio AcÃn, Carlos Pascual-GarcÃa
Continuous variable quantum key distribution via discrete modulations ensures information-theoretic security using standard telecom technologies, providing affordable and scalable…
All pure entangled states can lead to fully nonlocal correlations
Martin J. Renner, Edwin Peter Lobo, Arturo Konderak +2
It is a well-established fact that some quantum correlations can be nonlocal, meaning that they cannot be described by a local hidden variable model. Certain quantum correlations h…
Scalable Ground-State Certification of Quantum Spin Systems via Structured Noncommutative Polynomial Optimization
Jie Wang, David Jansen, Irénée Frerot +5
A fundamental challenge in quantum physics is determining the ground-state properties of many-body systems. Whereas standard variational approaches posit a wave-function ansatz and…