N = 1 supersymmetry algebra in 1 + 1 dimensions
In 1 + 1 dimensions the N = 1 supersymmetry algebra (also known as because we have one left-moving SUSY generator and one right moving one) has the following generators:
- supersymmetric charges:
- supersymmetric central charge:
- time translation generator:
- space translation generator:
- boost generator:
- fermionic parity:
- unit element:
The following relations are satisfied by the generators:
is a central element.
The supersymmetry algebra admits a -grading. The generators are even (degree 0), the generators are odd (degree 1).
2(H − P) gives the left-moving momentum and 2(H + P) the right-moving momentum.
Basic representations of this algebra are the vacuum, kink and boson-fermion representations, which are relevant e.g. to the supersymmetric (quantum) sine-Gordon model.
References
- K. Schoutens, Supersymmetry and factorized scattering, Nucl.Phys. B344, 665–695, 1990
- T.J. Hollowood, E. Mavrikis, The N = 1 supersymmetric bootstrap and Lie algebras, Nucl. Phys. B484, 631–652, 1997, arXiv:hep-th/9606116
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