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31 March 2020
 
  » arxiv » hep-th/0511036

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Non-commutative (D)-instantons
Marco Billo ; Marialuisa Frau ; Stefano Sciuto ; Giuseppe Vallone ; Alberto Lerda ;
Date 3 Nov 2005
AbstractWe 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
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