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Statut |
Confirmé |
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Série |
RENC-THEO |
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Domaines |
hep-th |
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Date |
Jeudi 18 Fevrier 2021 |
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Heure |
11:00 |
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Institut |
IHP |
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Salle |
Zoom: https://ecolepolytechnique.zoom.us/j/88950240007 |
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Nom de l'orateur |
Sen |
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Prenom de l'orateur |
Ashoke |
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Addresse email de l'orateur |
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Institution de l'orateur |
Harish-Chandra research institute |
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Titre |
D-instanton amplitudes in string theory |
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Résumé |
D-instantons give non-perturbative contribution to string theory
amplitudes which can be computed using world-sheet techniques. However the
integrals that appear in this computation often have divergences from
corners of the moduli spaces which cannot be tamed by the usual procedure
of analytic continuation. We show how using insights from string field
theory we can extract finite unambiguous results from these apparently
divergent integrals. |
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
- dinstanton.pdf (196042 bytes)
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