transparencies
transparencies
transparencies
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Motivation World-Sheet SUSY Lie superalgebras From World-Sheet SUSY to Supertargets Outlook<br />
Free fermion resolution<br />
• Free fermion resolution: Introduce auxiliary fields<br />
b = b a S a 1 ,<br />
¯b = ¯ba S 2a<br />
• Action<br />
• Screening charges<br />
S pert = − 1<br />
4πk<br />
S WZNW [g] = S 0 + S pert<br />
∫<br />
Σ<br />
d 2 σ str(Ad(g B )(¯b)b)<br />
• Bosonic WZNW, background charges, (1, 0) bc-ghosts<br />
S 0 = Sren WZNW [g B ] − 1 ∫<br />
dz 2√ hR (2) 1<br />
4π<br />
2 ln det R(g B)<br />
+ 1 ∫<br />
dz 2 ( b a ¯∂c a −<br />
2π<br />
¯b a ∂¯c a)