标题： 多 vielbein 理论中消除幽灵的约束的存在 显示英文标题

标题： Existence of ghost-eliminating constraints in multivielbein theory

摘要： 我们对arXiv:1804.09723中提出的多vielbein理论进行了哈密顿约束分析。 分析表明，二次约束具有正确的形式以约束动力变量，从而消除了通常困扰相互作用自旋-2场理论的问题性鬼态。 在对解空间施加适度限制的情况下，我们还确定了三次约束，并证明这些约束消除了与鬼态相关的规范动量。 我们的分析确认，具有$N$个相互作用vielbeins的理论传播$2+5(N-1)$个模式，对应于一个无Boulware-Deser鬼态不稳定的无质量自旋-2场和$N-1$个有质量自旋-2场的非线性理论。 显示英文摘要

摘要： We perform a Hamiltonian constraint analysis of the multivielbein theory proposed in arXiv:1804.09723. The analysis shows that the secondary constraints have the correct form to constrain the dynamical variables, thereby eliminating the problematic ghost modes that generally plague theories of interacting spin-2 fields. Under mild restrictions on the solution space, we also identify the tertiary constraints and show that these eliminate the canonical momenta associated with the ghost modes. Our analysis confirms that the theory with $N$ interacting vielbeins propagates $2+5(N-1)$ modes, corresponding to a nonlinear theory of one massless and $N-1$ massive spin-2 fields free of the Boulware-Deser ghost instabilities.