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arXiv 1003.1309gr-qchep-th
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星系自转的弦论解释

String theory explanation of galactic rotation

Mark D. Roberts

摘要:

提出了唯一的球对称度规,它具有消失的外尔张量,渐近地更接近于零,并能模拟恒定的星系自转曲线。两种类型的场方程被证明有这个度量作为一个精确的解决方案。第一种是帕拉蒂尼变标量张量理论。第二个是弦论的低能极限,它通过引入一个人为的势而得到修正。

英文摘要:

The unique spherically symmetric metric which has vanishing weyl tensor, is asymptotically desitter, and can model constant galactic rotation curves is presented. Two types of field equations are shown to have this metric as an exact solution. The first is palatini varied scalar-tensor theory. The second is the low energy limit of string theory modified by inclusion of a contrived potential.

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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