چكيده لاتين
Quantum batteries are advanced batteries that work based on quantum physics concepts that have more advantages than conventional batteries. For example, quantum batteries have a very high storage capacity. This means a significant increase in battery life and an increase in the usage time of these devices. Another interesting feature of quantum batteries is their fast charging capability. This means that quantum batteries can be charged and ready to use in a short time. Quantum batteries typically last longer than conventional batteries. This feature can play an important role in reducing the cost of replacing and renovating batteries. As an advanced technology, quantum batteries are used in many fields such as electric cars, advanced medical devices, energy storage systems, quantum computers, etc., and therefore have been considered as a futuristic technology. But in practice, the design of quantum batteries faces serious limitations. One of these limitations is the loss caused by the interaction of these systems with their surroundings. Therefore, quantum batteries are considered as an open quantum system as sources of energy supply. As a result, decoherence effects are an unavoidable factor. On the other hand, one of the mechanisms of decoherence is intrinsic decoherence. The purpose of this research is to investigate the effects of intrinsic decoherence on the performance of quantum batteries and the amount of ergotropy as the maximum work that can be extracted from the battery. The studied system is a set consisting of two coupled quantum dots, in each of which an electron is trapped. Electron interaction is described by Heisenbergʹs XYZ anisotropic spin interaction Hamiltonian which includes spin-orbit interaction. The results show that by controlling parameters such as magnetic field, spin-orbit interaction, coupling constant and degree of inhomogeneity of the magnetic field, it is possible to improve the effect of inherent diffusion on the performance and extraction of work from the system. For example, increasing the magnetic field increases ergotropy. Further investigation shows that this increase will be first with a high slope and then with a lower slope. Also, increasing the spin-orbit interaction first causes a slight decrease in ergotropy and then increases it with a large slope. The constant increase of coupling also first causes a decrease in ergotropy and then increases it with a gentle slope. In addition, increasing the inhomogeneity of the magnetic field first causes a slight decrease in ergotropy and then increases it.
