论文标题

关于准局部黑洞之间的超级翻译过渡

On Super-Translation transition between Quasi-local Black holes

论文作者

Ghosh, Amit, Ghosh, Avirup, Nanda, Pritam

论文摘要

我们从自由的角度重新探索了弱孤立的地平线(WIH)的对称性,从而选择了内在数据。超级翻译被认为是附加的对称性。此外,结果表明,与横截面相切的所有平滑矢量场都是哈密顿式的。我们表明,在超级倾斜的作用下,加入两个在这些哈密顿量和边界数据中有所不同的WIH,必然需要包含一个中间动力学阶段,可能还包括应力能量张量。边界的这一阶段是非扩展的,但不是WIH,并且总是会导致违反主要能量条件。这些假设使我们能够重建(经典)病理应力能量张量。

We re-explore the symmetries of a weakly isolated horizon (WIH) from the perspective of freedom in the choice of intrinsic data. The supertranslations are realized as additional symmetries. Further, it is shown that all smooth vector fields tangent to the cross-sections are Hamiltonian. We show that joining two WIHs which differ in these Hamiltonians and boundary data, under the action of a supertranslation, necessarily require the inclusion of an intermediate dynamical phase, possibly with the inclusion of a stress energy tensor. This phase of the boundary is non-expanding but not a WIH and invariably leads to a violation of the dominant energy condition. The assumptions made allow us to reconstruct the (classically) pathological stress energy tensor also.

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