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arXiv 1302.5464hep-thgr-qc
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具有局部时的正则张量模型及其唯一性

Canonical Tensor Model with Local Time and its Uniqueness

Naoki Sasakura

摘要:

本文提出了一种带有局部时概念的三秩张量模型的正则形式。局部时间演化的一致性是通过强制局部哈密顿量和张量模型的so(N)运动学对称性形成第一类约束代数来保证的。通过物理上合理的假设,证明了只存在两个这样的局部哈密顿量,它们在指数收缩方面略有不同。证明了第一类约束代数在一定的局部极限下逼近广义相对论的DeWitt约束代数。简要讨论了系统的量子化。

英文摘要:

A canonical formalism of the rank-three tensor model with the notion of local time is proposed. The consistency of the local time evolution is guaranteed by imposing that local Hamiltonians and the so(N) kinematical symmetry of the tensor model should form a first class constraint algebra. By imposing some physically reasonable assumptions, it is shown that there exist only two such local Hamiltonians with a slight difference in index contraction. The first class constraint algebra is shown to approach the DeWitt constraint algebra of the general relativity in a certain locality limit. Quantization of the system is briefly discussed.

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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