Geometric properties of QCD string from Willmore functional

JOURNAL OF GEOMETRY AND PHYSICS

卷:38

Article

Parthasarathy, R ; Viswanathan, KS

关键词: Willmore functional;    immersion in Riemann space;    QCD string action;    extrinsic curvature;   

DOI  :  10.1016/S0393-0440(00)00062-0

来源: Elsevier

【 摘 要 】

The extremum of the Willmore-like functional for m-dimensional Riemannian manifold immersed in d-dimensional Riemannian manifold under normal variations is studied and various cases of interest are examined. This study is used to relate the parameters of QCD string action, including the Polyakov-Kleinert extrinsic curvature action, with the geometric properties of the world sheet. The world sheet has been shown to have negative stiffness on the basis of the geometric considerations. (C) 2001 Elsevier Science B.V. All rights reserved.

【 授权许可】

Free