Gauge invariant approach to low-spin anomalous conformal currents and shadow fields

Details Gauge invariant approach to low-spin anomalous conformal currents and shadow fields Gauge invariant approach to low-spin anomalous conformal currents and shadow fields

2010-11-18

arxiv.org/abs/1011.4261v2

Phys.Rev.D83:106004,2011

Physics

High Energy Physics

High Energy Physics - Theory

28 pages, RevTeX4, v2: Sections 9C and 10C extended. Typos corrected

Scientific paper

10.1103/PhysRevD.83.106004

Conformal low-spin anomalous currents and shadow fields in flat space-time of dimension greater than or equal to four are studied. Gauge invariant formulation for such currents and shadow fields is developed. Gauge symmetries are realized by involving Stueckelberg and auxiliary fields. Gauge invariant differential constraints for anomalous currents and shadow fields and realization of global conformal symmetries are obtained. Gauge invariant two-point vertices for anomalous shadow fields are also obtained. In Stueckelberg gauge frame, these gauge invariant vertices become the standard two-point vertices of CFT. Light-cone gauge two-point vertices of the anomalous shadow fields are derived. AdS/CFT correspondence for anomalous currents and shadow fields and the respective normalizable and non-normalizable solutions of massive low-spin AdS fields is studied. The bulk fields are considered in modified de Donder gauge that leads to decoupled equations of motion. We demonstrate that leftover on-shell gauge symmetries of bulk massive fields correspond to gauge symmetries of boundary anomalous currents and shadow fields, while the modified (Lorentz) de Donder gauge conditions for bulk massive fields correspond to differential constraints for boundary anomalous currents and shadow fields.

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