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Non-commutative (D)-instantons | | Marco Billo
; Marialuisa Frau
; Stefano Sciuto
; Giuseppe Vallone
; Alberto Lerda
; | | Date: |
3 Nov 2005 | | Abstract: | We study systems of D3 and D(-1) branes in a NS-NS magnetic background and show that, when the brane configuration is stable, the physical degrees of freedom of the open strings with at least one end-point on the D-instantons describe the ADHM moduli of instantons for non-commutative gauge theories. We also prove that disk diagrams with mixed boundary conditions are the sources for the classical profile of the non-commutative gauge instantons in the singular gauge. We finally compare the string theory description in a large distance expansion with the non-commutative ADHM construction in the singular gauge and find complete agreement at perturbative level in the non-commutativity parameter. | | Source: | arXiv, hep-th/0511036 | | Services: | Forum | Review | PDF | Favorites | |
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