Off-shell effective actions in string theory |
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| Affiliation: | 1. Department of Organic and Nano System Engineering, Konkuk University, Seoul 05029, Republic of Korea;2. Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea;3. Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea |
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| Abstract: | A new, “off-shell”, approach to conformal invariance, β-functions and field equations in first quantized string theory is presented. The method, valid to all orders in the weak-field expansion and non-perturbatively in α′, is illustrated for a tachyon background at genus zero and one level. For a particular choice, we derive a Zamolodchikov-type equation for the effective action. |
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