Cohomogeneity-one-string integrability of spacetimes

Cohomogeneity-one-string integrability of spacetimes
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时空同齐性一弦可积

DOI:
10.1088/1361-6382/ab2e28
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发表时间:
2019
期刊:
Class.Quant.Grav.
影响因子:
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通讯作者:
Hideki Ishihara
Hideki Ishihara
中科院分区:
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文献类型:
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作者:
Yoshiyuki Morisawa;Soichi Hasegawa;Tatsuhiko Koike;Hideki Ishihara

文献摘要

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如果一个经典弦的世界片与时空具有一维对称性,那么这个经典弦被称为相干度1(C1)。我们提出C1弦可积性,即时空中所有C1弦的可积性,作为时空的一类隐藏对称性。C1弦可以探测粒子无法探测到的对称性。我们提出了一个简单的,系统的程序,寻找常数的运动C1弦和检查C1弦可积性的时空。我们将这个框架应用于一些物理上重要的时空,如,和。C1弦和C1-弦可积性可能对高度对称时空的一般弦可积性的先验检验是有用的,因为在上面的例子中,所有C1弦可积时空都是弦可积的,并且之前在这些或其他时空中获得的混沌弦解都是C1类的。
A classical string whose world sheet shares a one-dimensional symmetry with the spacetime is called cohomogeneity-one (C1). We propose C1-string integrability, ie integrability of all C1 strings in the spacetime, as a class of hidden symmetry of a spacetime. The C1 string may probe symmetry which is not probed by a particle. We present a simple, systematic procedure for finding constants of motion of a C1 string and examining C1 string integrability of a spacetime. We apply the framework to some physically important spacetimes such as,, and. C1 strings and C1-string integrability may be useful for a prior examination of general string integrability of a highly symmetric spacetime since, among the examples above, all C1 string integrable spacetimes are string-integrable, and the previously obtained chaotic string solutions in those or other spacetimes are of class C1.