Cookies

We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.


Durham e-Theses
You are in:

Supersymmetric probes of wrapped M5-brane backgrounds

Loureda, José Manuel Sanchez (2006) Supersymmetric probes of wrapped M5-brane backgrounds. Doctoral thesis, Durham University.

[img]
Preview
PDF
5Mb

Abstract

In this thesis we consider supersymmetric probes in backgrounds sourced by an M5-brane which is wrapped on holomorphic 2-cycles in C(^2) and C(^3), respectively. For the first case, we use M2-brane probes to compute the BPS spectra of the corresponding N = 2 gauge theory, as well as M5-brane probes to calculate field theory parameters such as the gauge coupling, theta angle and complex scalar moduli space metric. This background describes a large class of Hanany-Witten models when dimensionally reduced to Type IIA ten-dimensional supergravity. We calculate the instanton action using a Euclidean DO-brane probe in this limit. For the case of an M5-brane wrapping a 2-cycle in C(^3), we firstly show an alternative method of deriving this solution which involves the projection conditions and certain spinor bilinear differential equations. We also consider M5-brane probes in this background, and analyse the corresponding N = I MQCD gauge theory parameters, in direct analogy with the N = 2 case. We then move on to consider the central charges of the supersymmetry algebra of brane probes in the two backgrounds under consideration. For the case of an M5-brane wrapping a 2-cycle in c2, we find it allows for M2- braneร representing BPS monopoles and vortices. There is also the possibility of a "hidden" M5-brane which is similar to the M2-brane, but which includes a rotation in the complex structure and an extra volume modulus. For the N = I case, we find it allows for a supersymmetric M5-brane probe wrapping a Cayley calibrated 4-cycle, which is interpreted as a system of intersecting domain walls. These results are geometrically linked to M-theory structure groups.

Item Type:Thesis (Doctoral)
Award:Doctor of Philosophy
Thesis Date:2006
Copyright:Copyright of this thesis is held by the author
Deposited On:08 Sep 2011 18:31

Social bookmarking: del.icio.usConnoteaBibSonomyCiteULikeFacebookTwitter