Séminaire de Physique Théorique
Kalb-Ramond gauge theory in Noncommutative spaceM. Sivakumar (Univ. of Hyderabad, India)
Thursday 19 June 2008 14:00 - Tours - Salle 1180 (Bât E2)
Résumé :
It is widely accepted that quantum effects of gravity will force space-time to have a discrete structure which can be modelled by coordinates non commuting. Well studied among them is Moyal space wherein commutator of the coordinator belongs to center of the algebra. Field theories, including gauge theories have been well studied on this space. They have interesting features like even U(1) gauge theory has a non-abelian structure, emergent gravity structure for gauge theory. Kalb-Ramond field( anti-symmetric rank-two tensor field) is ubiquitous in physics. In this talk we discuss how abelian Kalb-Ramond(KR) gauge theory can be described in the Non commutative space. Issues discussed will be : construction of KR gauge theory, Seiberg-Witten map for KR field, emergent gravity coupling, duality to scalar field. Reference: Aspects of scalar-tensor duality in Noncommutative space-time: Ajith, Harikumar, Victor Rivelles, and Sivakumar;Phys Rev(D)( In press) hep-th/08012040
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