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arXiv · 1903.01628

Gauged fermionic matrix quantum mechanics

David Berenstein·Robert de Mello Koch
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Abstract

We consider the gauged free fermionic matrix model, for a single fermionic matrix. In the large $N$ limit this system describes a $c=1/2$ chiral fermion in $1+1$ dimensions. The Gauss' law constraint implies that to obtain a physical state, indices of the fermionic matrices must be fully contracted, to form a singlet. There are two ways in which this can be achieved: one can consider a trace basis formed from products of traces of fermionic matrices or one can consider a Schur function basis, labeled by Young diagrams. The Schur polynomials for the fermions involve a twisted character, as a consequence of Fermi statistics. The main result of this paper is a proof that the trace and Schur bases coincide up to a simple normalization coefficient that we have computed.

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David Berenstein, Robert de Mello Koch. 2019-03-05. Gauged fermionic matrix quantum mechanics. https://doi.org/10.1007/jhep03(2019)185

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