arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2604.03319gr-qc
收藏

对Sahan等人论文中Dirac粒子在磁化旋转曲率背景下的量子相变的评论

Comment on "Quantum phase transitions of Dirac particles in a magnetized rotating curved background: Interplay of geometry, magnetization, and thermodynamics"

Universidade Federal do Ceará (UFC)(塞阿拉联邦大学)

R. R. S. Oliveira

AI总结:

本文指出Sahan等人论文中Dirac粒子能量谱仅依赖一个量子数的错误,通过修正文献中的关键误差,推导出依赖两个量子数(径向和角向)的完整能量谱。

摘要:

在本文中,我们获得Sahan等人论文中Dirac粒子的完整能谱,即依赖两个量子数(径向量子数n≥0和角向量子数m≠0)的能谱。特别地,我们发现Sahan等人在极坐标下处理Dirac方程时,其能谱仅依赖一个量子数,而文献中其他研究显示能谱应依赖两个量子数。通过修正文献中的关键误差,并利用(2+1)维Dirac伽马矩阵的标准定义,我们推导出问题的真实二阶微分方程及完整能谱,该能谱明确依赖于n和m。最后,我们指出对于m<0(负角动量)且s=-1(Dirac旋量的下分量)时,除了一个符号错误的项外,得到Sahan等人论文中的特定能谱。

英文摘要:

In this comment, we obtain the complete energy spectra for the paper by Sahan et al. [1], that is, the energy spectra dependent on two quantum numbers, namely, the radial quantum number (given by $n\geq 0$) and the angular quantum number (given by $m\neq 0$). In particular, what motivated us to carry out such a study was the fact that the quantized energy spectra for Dirac particles in a curved or flat spacetime in polar coordinates explicitly depend on two quantum numbers. From this, the following question arose: Why do the energy spectra in the paper by Sahan et al. [1] depends on only one quantum number and not two, given that they worked with the Dirac equation in polar coordinates? So, using several important papers in the literature on the Dirac equation in curved spacetimes, as well as the most commonly used definition for Dirac gamma matrices in (2+1)-dimensions, we corrected some minor errors in the paper by Sahan et al. [1]. Consequently, we obtain the true second-order differential equation for their problem, as well as the complete energy spectra, which explicitly depend on both $n$ and $m$. Finally, we note that for $m<0$ (negative angular momentum) with $s=-1$ (lower component of the Dirac spinor), we obtain (except for one term with the incorrect sign) the particular energy spectra of Sahan et al. [1].

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑