Enhancing quantum battery capacity through local bipartite projective measurement
Xie Chuanmei, Senbo Tian, Jianlan Chen +1 more
Abstract Quantum batteries, as an important energy storage system in the future, are of vital importance to practical applications. However, due to the interaction between the quantum battery system and the environment, the battery capacity will decline. Then how to increase the capacity of quantum batteries becomes crucial. In this paper, we propose a new scheme via a local bipartite projective measurement to enhance the quantum battery capacity (QBC). Initially, two Werner states are taken as the carriers of the quantum batteries. Performing a local bipartite projective measurement performed on the two initially Werner states, a final state as a new quantum battery carrier can be realized. It is found that the QBC in the final state can be larger than those in the two initial states. That is to say, the enhancement of QBC can be realized via the local bipartite projective measurement.
Laser Physics Letters•Jun 1, 2026•0 citations