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논문

Stringy Jacobi fields in Morse theory

https://doi.org/10.1103/PhysRevD.75.127902

  • 저자Yong Seung Cho and Soon-Tae Hong
  • 학술지Physical Review D 75/12
  • 등재유형
  • 게재일자(2007)


We consider the variation of the surface spanned by closed strings in a spacetime manifold. Using the Nambu-Goto string action, we induce the geodesic surface equation and the geodesic surface deviation equation which yields a Jacobi field, and we define the index form of a geodesic surface as in the case of point particles to discuss conjugate strings on the geodesic surface.


We consider the variation of the surface spanned by closed strings in a spacetime manifold. Using the Nambu-Goto string action, we induce the geodesic surface equation and the geodesic surface deviation equation which yields a Jacobi field, and we define the index form of a geodesic surface as in the case of point particles to discuss conjugate strings on the geodesic surface.

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