1,218 research outputs found
T-duality Transformation of Gauged Linear Sigma Model with F-term
We develop the duality transformation rules in two-dimensional theories in
the superfield formalism. Even if the chiral superfield which we dualize
involves an F-term, we can dualize it by virtue of the property of chiral
superfields. We apply the duality transformation rule of the neutral chiral
superfield to the gauged linear sigma model for five-branes.
We also investigate the duality transformation rule of the charged chiral
superfield in the gauged linear sigma model for the
-type ALE space. In both cases we obtain the dual Lagrangians in the
superfield formalism. In the low energy limit we find that their duality
transformations are interpreted as T-duality transformations consistent with
the Buscher rule.Comment: 34 pages, version published in Nuclear Physics
Gauge Five-brane Solutions of Co-dimension Two in Heterotic Supergravity
We continue to study the BPS gauge five-brane solutions of codimension two in
ten-dimensional heterotic supergravity. The geometry including the dilaton and
the NS-NS -field are sourced from the monopole chain in . We find that the geometry is asymptotically Ricci flat and the dilaton is
no longer imaginary valued. These properties are contrasted with the smeared
counterpart discussed in our previous paper. We perform the T-duality
transformations of the solution and find that it never results in a
non-geometric object.Comment: 24 pages, 4 figures, typos corrected, version published in JHE
World-volume Effective Action of Exotic Five-brane in M-theory
We study the world-volume effective action of an exotic five-brane, known as
the M-theory 5-brane (M5-brane) in eleven dimensions. The
supermultiplet of the world-volume theory is the tensor
multiplet in six dimensions. The world-volume action contains three Killing
vectors associated with the
isometry. We find the effective T-duality rule for the
eleven-dimensional backgrounds that transforms the M5-brane effective action to
that of the M5-brane. We also show that our action provides the source
term for the M5-brane geometry in eleven-dimensional supergravityComment: 23 pages, comments and references added, version published in JHE
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