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

This article is issued from Wikipedia - version of the 7/5/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.