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A study of Wall-Crossing: flavored kinks in D = 2 QED

  • Sungjay Lee
  • Piljin Yi
Article

Abstract

We study spectrum of D = 2 \(\mathcal {N} \) = (2, 2) QED with N + 1 massive charged chiral multiplets, with care given to precise supermultiplet countings. In the infrared the theory flows to ℂℙ N model with twisted masses, where we construct generic flavored kink solitons for the large mass regime, and study their quantum degeneracies. These kinks are qualitatively different and far more numerous than those of small mass regime, with features reminiscent of multi-pronged (p, q) string web, complete with the wall-crossing behavior. It has been also conjectured that spectrum of this theory is equivalent to the hypermultiplet spectrum of a certain D = 4 Seiberg-Witten theory. We find that the correspondence actually extends beyond hypermultiplets in D = 4, and that many of the relevant indices match. However, a D = 2 BPS state is typically mapped to several different kind of dyons whose individual supermultiplets are rather complicated; the match of index comes about only after summing over indices of these different dyons. We note general wall-crossing behavior of flavored BPS kink states, and compare it to those of D = 4 dyons.

Keywords

Solitons Monopoles and Instantons Supersymmetric gauge theory Brane Dynamics in Gauge Theories Sigma Models 

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Copyright information

© SISSA, Trieste, Italy 2010

Authors and Affiliations

  1. 1.School of PhysicsKorea Institute for Advanced StudySeoulKorea

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