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北美退伍军人节(Veterans Day),12 日无更新
arXiv 2008.04134hep-thgr-qc
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无边界解对量子引力修正是鲁棒的

No-boundary solutions are robust to quantum gravity corrections

Caroline Jonas, Jean-Luc Lehners

摘要:

无边界假设是一种在半经典引力中建立的宇宙初始条件的理论,它依赖于运动方程的正则(复)解的存在。我们表明,通过显式计算,经常无边界的解决方案进行修改,但不破坏,包括预期的量子引力修正,涉及更高的权力的黎曼张量以及其协变导数。我们用弦论的例子来说明我们的结果。我们的研究结果提供了一个重要的自我一致性测试的无边界框架。

英文摘要:

The no-boundary proposal is a theory of the initial conditions of the universe formulated in semi-classical gravity, and relying on the existence of regular (complex) solutions of the equations of motion. We show by explicit computation that regular no-boundary solutions are modified, but not destroyed, upon inclusion of expected quantum gravity corrections that involve higher powers of the Riemann tensor as well as covariant derivatives thereof. We illustrate our results with examples drawn from string theory. Our findings provide a crucial self-consistency test of the no-boundary framework.

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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