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Getting the D‐brane effective action from BPS configurations
Author(s) -
Koerber P.,
Sevrin A.
Publication year - 2002
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/1521-3978(200209)50:8/9<923::aid-prop923>3.0.co;2-z
Subject(s) - superstring theory , abelian group , string (physics) , action (physics) , context (archaeology) , effective action , brane , physics , theoretical physics , mathematics , mathematical physics , pure mathematics , supersymmetry , quantum mechanics , paleontology , biology
We review a method to find the non‐abelian open superstring effective action, thereby settling the issue of the ordering ambiguities. We start from solutions to Yang‐Mills which, in D‐brane context, define certain BPS configurations. Studying their deformations in the abelian case shows that the Born‐Infeld action is the unique deformation which admits solutions of this type. By applying the method to the non‐abelian case we calculated the full effective action through ( α ′ 3 ). The presence of derivative terms turns out to be essential. Testing the result by comparing the spectrum in the presence of a constant magnetic background field with the string theory prediction, we obtain perfect agreement.