Jun 13 – 19, 2015
University of Alberta
America/Edmonton timezone
Welcome to the 2015 CAP Congress! / Bienvenue au congrès de l'ACP 2015!

Linear perturbations of type IIB SUGRA in flux compactifications

Jun 17, 2015, 9:45 AM
CAB 235 (University of Alberta)

CAB 235

University of Alberta

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition) Theoretical Physics / Physique théorique (DTP-DPT) W1-4 Gravity I (DTP) / Gravité I (DPT)


Bradley Cownden (University of Manitoba)


We consider linear perturbations of the background type IIB SUGRA solutions and find the equations of motion for the moduli. In particular, we allow for spacetime fluctuations of the positions of the D3-branes in the compact dimensions. We postulate an ansatz for the 5-form flux due to the motion of the D3-branes, and a corresponding first-order part of the metric. The movement of the D3-branes is then shown to affect the warp factor at linear order. Using the equations of motion for the D3-branes, the universal volume modulus, and the universal axion, we construct a second-order, effective action. Finally, based on the form of the effect action, we examine a Kahler potential for the moduli space.

Primary author

Bradley Cownden (University of Manitoba)


Prof. Andrew Frey (University of Winnipeg) Prof. Bret Underwood (Pacific Lutheran University)

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