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:
影响因子:
--
通讯作者:
Hideki Ishihara
中科院分区:
文献类型:
--
作者:
Yoshiyuki Morisawa;Soichi Hasegawa;Tatsuhiko Koike;Hideki Ishihara
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.