Exact Witten Index in D=2 supersymmetric Yang-Mills quantum mechanics

Details Exact Witten Index in D=2 supersymmetric Yang-Mills quantum mechanics Exact Witten Index in D=2 supersymmetric Yang-Mills quantum mechanics

2002-09-17

arxiv.org/abs/hep-th/0209140v1

Phys.Lett.B550:121-127,2002

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, 1 figure

Scientific paper

10.1016/S0370-2693(02)02969-6

A new, recursive method of calculating matrix elements of polynomial hamiltonians is proposed. It is particularly suitable for the recent algebraic studies of the supersymmetric Yang-Mills quantum mechanics in any dimensions. For the D=2 system with the SU(2) gauge group, considered here, the technique gives exact, closed expressions for arbitrary matrix elements of the hamiltonian and of the supersymmetric charge, in the occupation number representation. Subsequent numerical diagonalization provides the spectrum and restricted Witten index of the system with very high precision (taking into account up to $10^5$ quanta). Independently, the exact value of the restricted Witten index is derived analytically for the first time.

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