Signature change in matrix model solutions

Understand

Various classical solutions to lower dimensional IKKT-like Lorentzian matrix models are examined in their commutative limit.

• Poisson manifolds emerge in this limit, and their associated induced and effective metrics are computed.
• Signature change is found to be a common feature of these manifolds when quadratic and cubic terms are included in the bosonic action.
• In fact, a single manifold may exhibit multiple signature changes.