Wall-crossing from supersymmetric galaxies
Evgeny Andriyash, Frederik Denef, Daniel L. Jafferis, Gregory W. Moore
TL;DR
This paper provides a straightforward physical derivation of the Kontsevich-Soibelman wall crossing formula within 4d N=2 supergravity, offering a slight generalization that connects monodromy with the BPS spectrum.
Contribution
It presents an elementary physical derivation of the wall crossing formula and introduces a generalization linking monodromy to BPS spectrum.
Findings
Derivation of the wall crossing formula from physical principles
Generalization relating monodromy to BPS spectrum
Validation within 4d N=2 supergravity theories
Abstract
We give an elementary physical derivation of the Kontsevich-Soibelman wall crossing formula, valid for any theory with a 4d N=2 supergravity description. Our argument leads to a slight generalization of the formula, which relates monodromy to the BPS spectrum.
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