Interpreting the M2-brane Action

Details Interpreting the M2-brane Action Interpreting the M2-brane Action

2008-05-26

arxiv.org/abs/0805.3930v1

Mod.Phys.Lett.A24:721-724,2009

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX file, 6 pages

Scientific paper

10.1142/S0217732309030461

The world-volume theory of multiple M2-branes proposed recently has a free scalar field. For large vev of this scalar field the world-volume action reduces to that of multiple D2-branes with Yang-Mills coupling proportional to the vev. We suggest that the correct interpretation of this scalar field is as the radial position of the M2-brane center of mass in a cylindrical polar coordinate system. Regarding the azimuthal angle as compact we can regard this as a set of coincident D2-branes in type IIA string theory with varying dilaton and metric. We find that the effective world-volume theory on the D2-branes has Yang-Mills coupling proportional to the radial coordinate; furthermore the radial coordinate satisfies free field equations of motion. This agrees with the corresponding results derived from the M2-brane world-volume theory.

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