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arXiv · 2609.25207

A Quantum-Mechanical Model for the M5-Brane

Manuel Artime·Ralph Blumenhagen·Thomas Raml
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Abstract

We present a maximally supersymmetric extension of the BFSS matrix model based on the 5-Lie algebra ${\mathcal A}_6$. The theory is Lagrangian, promotes the BFSS 2-bracket structure constants to dynamical objects governed by a Chern-Simons-like kinetic term, and displays features expected from a theory of M5-branes. We show that it can also be obtained from the single lightcone M5-brane action on a spatial five-sphere after a truncation to the time coordinate. The resulting theory is a consistent truncation and, analogously to the $U(2)$ BFSS model, supports an interpretation of the $\mathcal{A}_6$ theory as a quantum-mechanical model for the lowest-lying modes of the M5-brane.

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Manuel Artime, Ralph Blumenhagen, Thomas Raml. 2026-09-21. A Quantum-Mechanical Model for the M5-Brane. https://arxiv.org/abs/2609.25207

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