4 papers · 1 filter
-VQE: Excited-state preparation of quantum many-body scars with shallow circuits
Eoin Carolan, Nathan Keenan, Gabriele Cenedese +1
We present and benchmark a type of variational quantum eigensolver (VQE), which we denote -VQE. It is designed to target mid-spectrum eigenstates and prepare quantum many-body…
Boosting Work Extraction in Quantum Batteries via Continuous Environment Monitoring
Gabriele Cenedese, Giuliano Benenti, Dario Ferraro +1
During the charging process, interactions between a quantum battery and its charger generally generate quantum correlations, which may reduce the amount of work extractable from th…
Quantum advantage bounds for a multipartite Gaussian battery
F. Cavaliere, D. Ferraro, M. Carrega +2
We demonstrate the possibility of a genuine quantum advantage in the efficiency of quantum batteries by analyzing a model that enables a consistent comparison between quantum and c…
Dynamical blockade of a reservoir for optimal performances of a quantum battery
F. Cavaliere, G. Gemme, G. Benenti +2
The development of fast and efficient quantum batteries is crucial for the prospects of quantum technologies. We show that both requirements are accomplished in the paradigmatic mo…