### Abstract

A classical string whose world sheet shares a one-dimensional symmetry with the spacetime is called cohomogeneity-one (C1). We propose C1-string integrability, i.e. 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 AdS_{5}, AdS_{5} × S^{5}, and AdS_{5} × T^{p,q}. 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.

Original language | English |
---|---|

Article number | 155009 |

Journal | Classical and Quantum Gravity |

Volume | 36 |

Issue number | 15 |

DOIs | |

Publication status | Published - 2019 Jul 17 |

### Fingerprint

### Keywords

- Hamiltonian system
- hidden symmetry
- pacetime symmetry

### ASJC Scopus subject areas

- Physics and Astronomy (miscellaneous)

### Cite this

*Classical and Quantum Gravity*,

*36*(15), [155009]. https://doi.org/10.1088/1361-6382/ab2e28

**Cohomogeneity-one-string integrability of spacetimes.** / Morisawa, Yoshiyuki; Hasegawa, Soichi; Koike, Tatsuhiko; Ishihara, Hideki.

Research output: Contribution to journal › Article

*Classical and Quantum Gravity*, vol. 36, no. 15, 155009. https://doi.org/10.1088/1361-6382/ab2e28

}

TY - JOUR

T1 - Cohomogeneity-one-string integrability of spacetimes

AU - Morisawa, Yoshiyuki

AU - Hasegawa, Soichi

AU - Koike, Tatsuhiko

AU - Ishihara, Hideki

PY - 2019/7/17

Y1 - 2019/7/17

N2 - A classical string whose world sheet shares a one-dimensional symmetry with the spacetime is called cohomogeneity-one (C1). We propose C1-string integrability, i.e. 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 AdS5, AdS5 × S5, and AdS5 × Tp,q. 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.

AB - A classical string whose world sheet shares a one-dimensional symmetry with the spacetime is called cohomogeneity-one (C1). We propose C1-string integrability, i.e. 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 AdS5, AdS5 × S5, and AdS5 × Tp,q. 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.

KW - Hamiltonian system

KW - hidden symmetry

KW - pacetime symmetry

UR - http://www.scopus.com/inward/record.url?scp=85070301892&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85070301892&partnerID=8YFLogxK

U2 - 10.1088/1361-6382/ab2e28

DO - 10.1088/1361-6382/ab2e28

M3 - Article

AN - SCOPUS:85070301892

VL - 36

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

SN - 0264-9381

IS - 15

M1 - 155009

ER -