Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The All-Genus String Effective Action   We use the off-shell string effective action method developed by E.S. Fradkin
and A.A. Tseytlin to obtain the formula for all-genus string effective action
with and without compactification at the low-energy approximation in the
massless background fields. We find that for the bosonic string, one can
determine the dilaton vacuum expectation value from the all-genus effective
action because of the nontrivial dependence of potential energy on dilaton. For
compactified four-dimensional string models, if one requires that the
target-space dilaton field lie on a K\"ahler manifold, we obtain a constraint
which will specify the worldsheet dilaton in terms of the constant background
fields. We also show that under this constraint, the tree-level k\"ahlar
potential and superpotential are not changed by the higher-genus effect. This
proves again the non-renormalization theorem for a string moving in massless
background fields in the low-energy approximation.

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The categories of this paper are: q-alg
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The categories of this paper are: adap-org
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The categories of this paper are: hep-lat
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The categories of this paper are: econ
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The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: math-ph
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The categories of this paper are: nlin
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The categories of this paper are: alg-geom
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph