Categorical wall-crossing in Landau–Ginzburg models

Oct 22, 2020
80 pages
Published in:
  • Beijing J.Pure Appl.Math. 1 (2024) 1, 43-119
  • Published: 2024
e-Print:

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Abstract: (International Press)
We describe how categorical BPS data including chain complexes of solitons, CPT pairings, and interior amplitudes jump across a wall of marginal stability in two-dimensional N=(2,2) models. We show that our jump formulas hold if and only if the A∞-categories of 12-BPS branes constructed on either side of the wall are homotopy equivalent. These results can be viewed as categorical enhancements of the Cecotti–Vafa wall-crossing formula.
Note:
  • 80 pages, 18 figures
  • stability: marginal
  • dimension: 2
  • Landau-Ginzburg model
  • membrane model
  • Wall crossing
  • homotopy
  • soliton
  • supersymmetry: 2
  • BPS