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arXiv 2202.06408math.APgr-qcmath-phmath.MP
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渐近Minkowski时空上的Lorentz谱zeta函数

Lorentzian spectral zeta functions on asymptotically Minkowski spacetimes

Nguyen Viet Dang, Michał Wrochna

摘要:

本文考虑Minkowski空间以及波算子$\square_g$本质上自伴的更一般时空的扰动。我们回顾了最近的一个结果,它给出了洛伦兹谱zeta函数密度的亚纯延拓,即复幂$α\mapsto (\square_g-i \varepsilon)^{-α}$的迹密度。在偶数维$n\geq 4$中,$\frac{n}{2}-1$处的留数被证明是极限$\varepsilon\to 0^+$中数量曲率的倍数。这就产生了洛伦兹签名中引力的谱作用量。

英文摘要:

In this note, we consider perturbations of Minkowski space as well as more general spacetimes on which the wave operator $\square_g$ is essentially self-adjoint. We review a recent result which gives the meromorphic continuation of the Lorentzian spectral zeta function density, i.e. of the trace density of complex powers $α\mapsto (\square_g-i \varepsilon)^{-α}$. In even dimension $n\geq 4$, the residue at $\frac{n}{2}-1$ is shown to be a multiple of the scalar curvature in the limit $\varepsilon\to 0^+$. This yields a spectral action for gravity in Lorentzian signature.

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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