A supersymmetric matrix model: II. Exploring higher-fermion-number sectors
Abstract
Continuing our previous analysis of a supersymmetric quantum-mechanical matrix model, we study in detail the properties of its sectors with fermion number F=2 and 3. We confirm all previous expectations, modulo the appearance, at strong coupling, of two new bosonic ground states causing a further jump in Witten's index across a previously identified critical 't Hooft coupling λc. We are able to elucidate the origin of these new SUSY vacua by considering the λ ∞ limit and a strong coupling expansion around it.
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