In this work, an electron which is strongly coupled to the strong electron–phonon (e–p) in RbCl quantum pseudodot qubit is considered. First, we employ the Pekar variational method and obtain the eigenenergies and eigenfunctions of the ground and the first excited states of the system. Then, we have employed three different entropies such as Tsallis, Landsberg–Vedral, and Escort for the system subjected to an applied electric field. In this regard, we have studied the effect of polaronic radius, electric field, e–p coupling strength, and non-extensive parameter. It is found that the entropies oscillate with passing time. The entropies increase with enhancing electric field, e–p coupling strength and decrease with polaronic radius. The results show that the missing information in the RbCl pseudodot qubit can be controlled by changing the system parameters. According to the results, it is deduced that the entropy is an important quantity to display the total storage or missing information in a qubit.

中文翻译：

---

利用非扩展熵研究RbCl量子伪点量子位

在这项工作中，考虑了与RbCl量子伪点量子位中的强电子-声子（e-p）强耦合的电子。首先，我们采用Pekar变分方法，获得地面的本征能和本征函数以及系统的第一个激发态。然后，我们对施加电场的系统采用了三种不同的熵，例如Tsallis，Landsberg-Vedral和Escort。在这方面，我们研究了极化子半径，电场，e-p耦合强度和非扩展参数的影响。发现熵随着时间的流逝而振荡。熵随增强电场，e-p耦合强度而增加，随极化子半径而减小。结果表明，可以通过更改系统参数来控制RbCl伪点qubit中的丢失信息。根据结果​​可以推论出，熵是一个重要的量，可以显示整个存储量或丢失的量子位信息。