Name: Sun Kesheng Date: 09/01/11-03:47:46 AM Z


Fierz transformations rearranges the order of the spinors.In the example,however,the order of the spinors does not change .

that is:

Spinor[pa].().Spinor[pb]*Spinor[pi].().Spinor[pj]
->
Spinor[pa].().Spinor[pb]*Spinor[pi].().Spinor[pj]