A self-contained review on spin-half mass dimension one fermions and their higher-spin generalizations is presented. Starting from the two-component left-handed Weyl spinors, the Dirac spinors and Elko (eigenspinors of the charge conjugation operator) are constructed. After elaborating on their similarities and differences, we generalize the spin-half Elko to higher-spin. The field operators constructed from Elko and their higher-spin generalizations are shown to be of mass dimension one with positive-definite free Hamiltonians. The physical significance of higher-spin mass dimension one particles and further extensions in the context of Lounesto classification are discussed.

提出了关于自旋半质量维一费米子及其更高自旋泛化的独立综述。从两部分的左旋Weyl旋转子开始，构造了Dirac旋转子和Elko（电荷共轭​​算子的本征旋转子）。在阐述了它们的异同之后，我们将自旋一半的Elko推广到高自旋。由Elko及其更高旋转的概括构造的现场算子具有一维正定自由哈密顿量。在Lounesto分类的背景下，讨论了高自旋质量维一粒子的物理意义以及进一步扩展。