4 papers · 1 filter
Variational noise mitigation in quantum circuits: the case of Quantum Fourier Transform
Rafael Gómez-Lurbe, Alexander Bernal, Armando Pérez +2
We propose using variational quantum algorithms (VQAs) to simulate established quantum algorithms under realistic noise conditions, aiming to surpass the fidelity of theoretical ci…
Maximal Clauser-Horne-Shimony-Holt violation for qubit-qudit states
Alexander Bernal, J. Alberto Casas, Jesus M. Moreno
We evaluate the maximal Clauser-Horne-Shimony-Holt (CHSH) violation for a generic (typically mixed) qubit-qudit state, obtaining easily computable expressions in arbitrary qudit di…
Practical Criteria for Entanglement and Nonlocality in Systems with Additive Observables
Alexander Bernal, J. Alberto Casas, Juan Falceto
For general bipartite mixed states, a sufficient and necessary mathematical condition for certifying entanglement and/or (Bell) non-locality remains unknown. In this paper, we exam…
Nonlocality under Jaynes-Cummings evolution: beyond pseudospin operators
Alexander Bernal, J. Alberto Casas, Jesus M. Moreno
We re-visit the generation and evolution of (Bell) nonlocality in hybrid scenarios whose dynamics is determined by the Jaynes-Cummings Hamiltonian, a relevant example of which is t…