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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Ambiguities in the Seiberg-Witten map and emergent gravity

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Rivelles, Victor O. [1]
Total Authors: 1
[1] Univ Sao Paulo, Inst Fis, BR-05314970 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Classical and Quantum Gravity; v. 31, n. 2 JAN 21 2014.
Web of Science Citations: 4

The theta expansion of the Seiberg-Witten map has ambiguities which can be removed by a gauge transformation and/or a field redefinition. In the context of emergent gravity such a field redefinition changes the emerging metric and requires the presence of non-minimal gravitational couplings. It also requires that a real scalar field becomes a scalar density and allows the introduction of a potential. We also find that the potential can have only one term and that a quartic interaction is not allowed. Even though the metric depends on the ambiguity we show that the dispersion relation does not present any sign of it. A proposal for an exact Seiberg-Witten map is used to derive the full metric going beyond the linearized limit. (AU)

FAPESP's process: 08/05343-5 - Quantum gravity
Grantee:Victor de Oliveira Rivelles
Support type: Research Projects - Thematic Grants