Bouncing Universes in String Theory

Bouncing Universes in String Theory
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弦理论中的弹跳宇宙

DOI:
10.1238/physica.topical.117a00064
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发表时间:
2005
期刊:
影响因子:
--
通讯作者:
J. Polchinski
J. Polchinski
中科院分区:
--
文献类型:
--
作者:
J. Polchinski

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我讨论了弦理论中对宇宙弹跳的理解。我认为,目前还没有一种弦理论的受控近似可以给出一个弹跳解(除了那些在有效的低能量场理论中已经允许的,由势能驱动的解)。我预计这种反弹不会发生,但这是一个重要的悬而未决的问题。
I discuss the understanding of cosmological bounces in string theory. I argue that at present, there is no controlled approximation to string theory that gives a bouncing solution (aside from those already allowed in the effective low energy field theory, driven by potential energy). I expect that such bounces do not occur, but it is an important open question.