Charging a quantum spin network towards Heisenberg-limited precision

B Donelli, S Gherardini, R Marino, F Campaioli… - arxiv preprint arxiv …, 2024 - arxiv.org
We present a cooperative protocol to charge quantum spin networks up to the highest-
energy configuration, in terms of the network's magnetization. The charging protocol …

Universally-Charging Protocols for Quantum Batteries: A No-Go Theorem

P Sathe, F Caravelli - arxiv preprint arxiv:2409.02198, 2024 - arxiv.org
The effectiveness of a quantum battery relies on a robust charging process, yet these are
often sensitive to initial state of the battery. We introduce the concept of a universally …