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北美退伍军人节(Veterans Day),12 日无更新
arXiv 2012.11264gr-qc
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离散黑洞

Discrete Black Holes

Jakub Káninský

摘要:

经典时空通常由一个具有无穷多个自由度的可微流形来描述。有时候,考虑一个自由度有限的近似值是有用的。有几个这样的时空离散模型,其中一些已经被用来建立一个黑洞的(简化)表示。我们将很快重新审视这些离散的黑洞模型。然后,我们将自己限制在一个特定的情况下,并显示它如何可以居住的量子物质场。有人建议,场动力学应该描述的离散正则演化的框架,我们指出了一些最重要的影响,这种方法。

英文摘要:

The classical spacetime is usually described by a differentiable manifold with infinitely many degrees of freedom. Occasionally though, it is useful to consider an approximation whose number of degrees of freedom is finite. There are several discrete models of spacetime like that, some of which have been used to build a (simplified) representation of a black hole. We will shortly revisit these discrete black hole models. Then we limit ourselves to one particular case and show how it can be inhabited by quantum matter fields. It is suggested that the field dynamics should be described by the framework of discrete canonical evolution, and we point out some of the most significant implications of this approach.

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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