Supersymmetry of the chiral de Rham complex
Supersymmetry of the chiral de Rham complex
复制标题
手性 de Rham 配合物的超对称性
DOI:
10.1112/s0010437x07003223
复制
发表时间:
2006
影响因子:
1.8
通讯作者:
M. Szczesny
中科院分区:
文献类型:
--
作者:
David Ben;Reimundo Heluani;M. Szczesny
Abstract We present a superfield formulation of the chiral de Rham complex (CDR), as introduced by Malikov, Schechtman and Vaintrob in 1999, in the setting of a general smooth manifold, and use it to endow CDR with superconformal structures of geometric origin. Given a Riemannian metric, we construct an N=1 structure on CDR (action of the N=1 super-Virasoro, or Neveu–Schwarz, algebra). If the metric is Kähler, and the manifold Ricci-flat, this is augmented to an N=2 structure. Finally, if the manifold is hyperkähler, we obtain an N=4 structure. The superconformal structures are constructed directly from the Levi-Civita connection. These structures provide an analog for CDR of the extended supersymmetries of nonlinear σ-models.