Abstract
Abstract
WZW models based on super Lie algebras play an important role for the description of string theory on AdS spaces. In particular, for the case of
AdS
3
×
S
3
with pure NS–NS flux the super Lie algebra of
psu
(
1
,
1
|
2
)
k
appears in the hybrid formalism, and higher dimensional AdS spaces can be described in terms of related supergroup cosets. In this paper we study the WZW models based on
u
(
2
|
2
)
1
and
psu
(
2
|
2
)
1
that may play a role for the worldsheet theory that is dual to free super Yang–Mills in 4D.
Funder
Simons Foundation
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung