Better performance of quantum batteries in different environments compared to closed batteries

被引:0
|
作者
Liu, Shu-Qian [1 ]
Wang, Lu [1 ]
Fan, Hao [1 ]
Wu, Feng-Lin [1 ,2 ]
机构
[1] Northwest Univ, Inst Modern Phys, Xian 710127, Peoples R China
[2] Shaanxi Key Lab Theoret Phys Frontiers, Xian 710127, Peoples R China
基金
中国国家自然科学基金;
关键词
47;
D O I
10.1103/PhysRevA.109.042411
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We construct a central -spin battery model affected by noise or thermal bath and consider the impact of environment on battery performance. In a noisy environment, we show that the steady-state energy and ergotropy are related to the number of spins exposed to the noisy channel. In addition, we reveal the relationship between the steady-state energy and ergotropy with the quantum information lost in the battery. In a thermal bath, we find that the higher the mean occupation number of the thermal bath, the greater the steady-state energy. In particular, we find that, in two different environments, the steady-state energy and ergotropy are related to the effective magnetic -field strength of battery B , but not charger h . It is worth noting that, in the central -spin model, when B is a constant and | h / B - 1 | reaches a certain value, the steady-state energy and ergotropy with noise or thermal bath are always greater than or equal to the maximum energy and ergotropy of the corresponding closed battery. At the same time, we generalize the conclusions to the two-qubit, two -harmonic -oscillator, and harmonic-oscillator-qubit models.
引用
收藏
页数:13
相关论文
共 50 条
  • [1] Investigate batteries with a SEM for better performance
    不详
    [J]. BRAZILIAN JOURNAL OF ANALYTICAL CHEMISTRY, 2018, 5 (20): : 68 - 70
  • [2] Energy storage and coherence in closed and open quantum batteries
    Caravelli, Francesco
    Yan, Bin
    Garcia-Pintos, Luis Pedro
    Hamma, Alioscia
    [J]. QUANTUM, 2021, 5
  • [3] Better batteries
    Burke, Maria
    [J]. CHEMISTRY & INDUSTRY, 2020, 84 (05) : 15 - 15
  • [4] Better Batteries
    Sedacca, Matthew
    [J]. SCIENTIFIC AMERICAN, 2017, 317 (04) : 23 - 23
  • [5] Better batteries
    不详
    [J]. DR DOBBS JOURNAL, 2002, 27 (05): : 14 - 14
  • [6] BETTER BATTERIES
    MCLENNAN, AJ
    [J]. IEEE SPECTRUM, 1995, 32 (02) : 6 - 6
  • [7] Better batteries
    Lakeman, JB
    [J]. NEW SCIENTIST, 1996, 151 (2043) : 51 - 51
  • [8] Quantum batteries could perform better if charged wirelessly
    Padavic-Callaghan, Karmela
    [J]. NEW SCIENTIST, 2023, 246 (3456) : 17 - 17
  • [9] Charging performance of quantum batteries based on
    Huang, Bin-Yuan
    He, Zhi
    Chen, Yu
    [J]. ACTA PHYSICA SINICA, 2023, 72 (18)
  • [10] BUILDING BETTER BATTERIES
    O'Heir, Jeff
    [J]. MECHANICAL ENGINEERING, 2017, 139 (01) : 10 - 11