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arxiv: 1403.4805 · v2 · submitted 2014-03-19 · ✦ hep-th · math-ph· math.MP

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A Course on Noncommutative Geometry in String Theory

Ralph Blumenhagen
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classification ✦ hep-th math-phmath.MP
keywords stringnoncommutativecoursetheoryappearanceappearingattemptsbackground
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In this pedagogical mini course the basics of the derivation of the noncommutative structures appearing in string theory are reviewed. First we discuss the well established appearance of the noncommutative Moyal-Weyl star-product in the correlation functions of open string vertex operators on a magnetized D-brane. Second, we will review the most recent attempts to generalize these concepts to the closed string moving in a nongeometric flux background.

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  1. Covariant phase space approach to noncommutativity in tensile and tensionless open strings

    hep-th 2026-04 unverdicted novelty 6.0

    Covariant phase space analysis shows tensionless open strings in constant Kalb-Ramond background have purely boundary-supported phase space with noncommutative endpoint coordinates, recovering Seiberg-Witten noncommut...