Carrasco Javier, Maze Jerónimo R, Hermann-Avigliano Carla, Barra Felipe
Department of Physics, Faculty of Physical and Mathematical Sciences, University of Chile, Santiago, Chile.
Institute of Physics, Pontificia Universidad Católica de Chile, Santiago, Chile.
Phys Rev E. 2022 Jun;105(6-1):064119. doi: 10.1103/PhysRevE.105.064119.
We study a quantum battery made out of N nonmutually interacting qubits coupled to a dissipative single electromagnetic field mode in a resonator. We quantify the charging energy, ergotropy, transfer rate, and power of the system, showing that collective enhancements are still present despite losses, and can even increase with dissipation. Moreover, we observe that a performance deterioration due to dissipation can be reduced by scaling up the battery size. This is useful for experimental realizations when controlling the quality of the resonator and the number of qubits are limiting factors.
我们研究了一种由N个非相互作用的量子比特构成的量子电池，这些量子比特与一个谐振器中的耗散单电磁模式场相耦合。我们对该系统的充电能量、能熵、转移速率和功率进行了量化，结果表明，尽管存在损耗，但集体增强效应仍然存在，甚至会随着耗散而增加。此外，我们观察到，通过扩大电池尺寸，可以减少由于耗散导致的性能下降。当控制谐振器的品质因数和量子比特数量成为限制因素时，这对于实验实现是有用的。
