Massless 3-brane in M-theory
release_i4l3bak465gfrjzfqmd34enl4u
by
M. Cvetic,
H. Lu,
C.N. Pope
2001
Abstract
We construct supersymmetric M3-brane solutions in D=11 supergravity. They can
be viewed as deformations of backgrounds taking the form of a direct product of
four-dimensional Minkowski spacetime and a non-compact Ricci-flat manifold of
G_2 holonomy. Although the 4-form field strength is turned on it carries no
charge, and the 3-branes are correspondingly massless. We also obtain 3-branes
of a different type, arising as M5-branes wrapped over S^2.
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