The Rotation and Shear of a String

Details The Rotation and Shear of a String The Rotation and Shear of a String

2002-04-28

arxiv.org/abs/hep-th/0204236v3

Class.Quant.Grav.20:507-520,2003

Physics

High Energy Physics

High Energy Physics - Theory

version 3: some sub/superscript corrections on the internal labels of the Nambu-Goto string, version 2: 17 pages, result gener

Scientific paper

10.1088/0264-9381/20/3/308

Whether a string has rotation and shear can be investigated by an anology with the point particle. Rotation and shear involve first covariant spacetime derivatives of a vector field and, because the metric stress tensor for both the point particle and the string have no such derivatives, the best vector fields can be identified by requiring the conservation of the metric stress. It is found that the best vector field is a non-unit accelerating field in x, rather than a unit non-accelerating vector involving the momenta; it is also found that there is an equation obeyed by the spacetime derivative of the Lagrangian. The relationship between membranes and fluids is looked at.

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