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arXiv 1004.3252hep-thgr-qchep-lat
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Fuzzy 2-球面上自旋1 Dirac算子的谱

Spectrum of Spin 1 Dirac Operators on the Fuzzy 2-Sphere

Sanatan Digal, Pramod Padmanabhan

摘要:

我们用数值方法求出了在~ \cite{ApbPP}中发现的$3$自旋$1$狄拉克算符的谱。我们给出了一个分析和数值证明,他们是酉不等价的。由于这些运营商来配对的反交换手征运营商,我们发现他们的频谱类似于费米子的正负本征值以及一些零模式。我们给出了一种计算零模个数的方法,该方法可以推广到$S_F^2$上的高自旋情况。发现了自旋为1的Dirac算符的能量本征值与其重数之间的普遍关系,这有助于我们预测任意大截止$L$的能量本征值,这是一个计算上难以处理的问题.

英文摘要:

We numerically find out the spectrum of the $3$ spin $1$ Dirac operators found in~\cite{ApbPP}. We give an analytic and numerical proof that they are unitarily inequivalent. Since these operators come paired with an anticommuting chirality operator, we find their spectrums to resemble those of fermions with positive and negative eigenvalues along with a number of zero modes. We give a method to count the number of zero modes which can be extended to higher spins on $S_F^2$. An universal relation between the energy eigenvalues of the spin 1 Dirac operator and their multiplicities is found. This helps us predict the energy eigenvalues for an arbitrarily large cut-off $L$, a problem which is computationally difficult to handle.

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。

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