Quantum Fields from Global Propagators on Asymptotically Minkowski and Extended de Sitter Spacetimes

Quantum Fields from Global Propagators on Asymptotically Minkowski and Extended de Sitter Spacetimes
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渐近闵可夫斯基和扩展德西特时空上的全局传播器的量子场

DOI:
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发表时间:
2015
期刊:
影响因子:
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通讯作者:
M. Wrochna
M. Wrochna
中科院分区:
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文献类型:
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作者:
A. Vasy;M. Wrochna

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我们考虑渐近Minkowski时空上的波动方程和偶渐近de Sitter空间上的Klein-Gordon方程。在这两种情况下,我们表明,传播子的极端差异(即, 延迟传播子减去超前传播子,或Feynman减去反Feynman),定义为Fredholm逆,在解空间上导出了一个辛形式,波前集局限于径向集。此外,我们构造了渐近数据的解空间和辛空间之间的同构。作为这个结果的一个应用,我们从渐近数据中得到了特殊的Hadamard两点函数。最后,我们证明了渐近de Sitter时空上的非相互作用量子场论可以跨越未来和过去的共形边界,即, 到由两个偶渐近双曲空间表示的区域。具体来说,我们证明这是真的,在辛空间的解决方案和阿达玛两点函数的水平。
We consider the wave equation on asymptotically Minkowski spacetimes and the Klein–Gordon equation on even asymptotically de Sitter spaces. In both cases, we show that the extreme difference of propagators (i.e., retarded propagator minus advanced, or Feynman minus anti-Feynman), defined as Fredholm inverses, induces a symplectic form on the space of solutions with wave front set confined to the radial sets. Furthermore, we construct isomorphisms between the solution spaces and symplectic spaces of asymptotic data. As an application of this result, we obtain distinguished Hadamard two-point functions from asymptotic data. Ultimately, we prove that non-interacting Quantum Field Theory on asymptotically de Sitter spacetimes extends across the future and past conformal boundary, i.e., to a region represented by two even asymptotically hyperbolic spaces. Specifically, we show this to be true both at the level of symplectic spaces of solutions and at the level of Hadamard two-point functions.
DOI: 10.4171/037
发表时间: 2007-03
期刊: --
影响因子: --
作者:
Christian Baer;N. Ginoux;Frank Pfaeffle
通讯作者: Christian Baer;N. Ginoux;Frank Pfaeffle