TY - JOUR
TI - Quantum battery systems: Analyzing two-mode field charging, qubit interactions, and environmental influences
AU - Zahia Ahmed A
AU - Abd-Rabbou Mahmoud Y
AU - Khalild Eied Mahmoud
AU - Al-Awfi Saud
JN - Thermal Science
PY - 2024
VL - 28
IS - 6
SP - 5179
EP - 5192
PT - Article
AB - This study investigates the dynamical behaviour of a two-cell (two-atom)  quantum battery driven by a two-mode charging field. We explore the  influence of varying interaction strengths on the system's performance. This  includes increasing the coupling between cells and charging fields, and  cells themselves through a dipole interaction and Ising interaction along  the z-axis. Additionally, the impact of environmental effects is examined by  incorporating decay terms for both the charging fields and the cells. Our  analysis focuses on key performance metrics such as stored energy, average  power, ergotropy, energy fluctuations, and quantum speed limit time. The  results reveal that the environment negatively impacts stored energy, power,  and ergotropy, but leads to higher speed limits. Enhanced coupling between  the charging fields and the cells improves the studied correlations,  promoting efficient energy transfer and decreasing speed limit time.  Increasing the coupling between the cells, either via the dipole or Ising  interaction, generally exhibits a similar effect. This involves a decrease  in maximum achievable energy storage, accompanied by the emergence of more  erratic energy fluctuations.