Impact of Dynamical Tensions in Modified String and Brane Theories

Details Impact of Dynamical Tensions in Modified String and Brane Theories Impact of Dynamical Tensions in Modified String and Brane Theories

2004-01-13

arxiv.org/abs/hep-th/0401083v1

Physics

High Energy Physics

High Energy Physics - Theory

10 pages; to appear in: "Fifth Workshop on Lie Theory and Applications in Physics", H.-D. Doebner and V. Dobrev (eds.), World

Scientific paper

First we briefly outline the general construction of Dp-brane models with dynamical tensions. We then proceed to a more detailed discussion of a modified string model where the string tension is related to the potential of (an external) world-sheet electric current. We show that cancellation of the pertinent conformal anomaly on the quantum level requires the dynamical string tension to be a square of a free massless world-sheet scalar field.

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