Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-01-02
Phys.Rev.D74:125023,2006
Physics
High Energy Physics
High Energy Physics - Theory
14 pages Latex
Scientific paper
10.1103/PhysRevD.74.125023
A new Lagrangian description that interpolates between the Nambu--Goto and Polyakov version of interacting strings is given. Certain essential modifications in the Poission bracket structure of this interpolating theory generates noncommutativity among the string coordinates for both free and interacting strings. The noncommutativity is shown to be a direct consequence of the nontrivial boundary conditions. A thorough analysis of the gauge symmetry is presented taking into account the new modified constraint algebra, which follows from the noncommutative structures and finally a smooth correspondence between gauge symmetry and reparametrisation is established.
Gangopadhyay Sunandan
Hazra Arindam Ghosh
Saha Anirban
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