منابع مشابه
Exact O(d,d) transformations in WZW models.
Using the algebraic Hamiltonian approach, we derive the exact to all orders O(d,d) transformations of the metric and the dilaton field in WZW and WZW coset models for both compact and non-compact groups. It is shown that under the exact O(d)×O(d) transformation only the leading order of the inverse metric G−1 is transformed. The quantity √ G exp(Φ) is the same in all the dual models and in part...
متن کاملExact effective action and spacetime geometry in gauged WZW models.
We present an effective quantum action for the gauged WZW model G −k /H −k. It is conjectured that it is valid to all orders of the central extension (−k) on the basis that it reproduces the exact spacetime geometry of the zero modes that was previously derived in the algebraic Hamiltonian formalism. Besides the metric and dilaton, the new results that follow from this approach include the exac...
متن کاملWZW action in odd dimensional gauge theories
It is shown that Wess-Zumino-Witten (WZW) type actions can be constructed in odd dimensional space-times using Wilson line or Wilson loop. WZW action constructed using Wilson line gives anomalous gauge variations and the WZW action constructed using Wilson loop gives anomalous chiral transformation. We show that pure gauge theory including Yang-Mills action, Chern-Simons action and the WZW acti...
متن کاملWzw-models in Extended Superspace
We find the complex structure on the dual of a complex target space. For N = (2, 2) systems, we prove that the space orthogonal to the kernel of the commutator of the left and right complex structures is always integrable, and hence the kernel is parametrized by chiral and twisted chiral superfield coordinates. We then analyze the particular case of SU(2) × SU(2), and are led to a new N = 2 sup...
متن کاملLogarithmic Yangians in WZW models
A new action of the Yangians in the WZW models is displayed. Its structure is generic and level independent. This Yangian is the natural extension at the conformal point of the one unravelled in massive theories with current algebras. Expectingly, this new symmetry of WZWmodels will lead to a deeper understanding of the integrable structure of conformal field theories and their deformations. 12...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1994
ISSN: 0556-2821
DOI: 10.1103/physrevd.50.6481