On equivalence of the Komargodski-Seiberg action to the Volkov-Akulov action

Abstract

Equivalence between the Komargodski-Seiberg and the Volkov-Akulov supersymmetric nonlinear Lagrangians of the Nambu-Goldstone fermions is proved in all orders in their interaction constant. The exact expression of the KS fermionic field through the VA fermion is found.

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