Instanton Effects in Supergravity Theories

Abstract

Non-perturbative effects of instanton-like solutions are studied within the framework of supergravity theories with field-dependent gauge functions. Fermionic zero modes are constructed and some typical correlation functions are evaluated. The effects of instantons are very similar to those in globally supersymmetric theories: they preserve supersymmetry while breaking a chiral $U(1)$ symmetry. Non-perturbative amplitudes receive corrections which are suppressed at large distances.

10 pages, NUB-3064--PUPT-1400--SNUTP-93-29

References in corpus (2)

• Supersymmetric String Solitons
• Superstring Threshold Corrections to Yukawa Couplings

Cited by in corpus (4)

• ALE Instantons in String Effective Theory
• Gaugino Condensation, S-Duality and Supersymmetry Breaking in Supergravity Models
• Fivebrane Instanton Corrections to the Universal Hypermultiplet
• Fermionic zero-modes around string solitons