Found 7 result(s)

### 28.03.2018 (Wednesday)

Regular Seminar James Sparks (Oxford)

 at: 13:15 KCLroom K4.31 abstract: TBA

### 14.12.2011 (Wednesday)

#### Gravity duals of supersymmetric gauge theories on curved manifolds

Triangular Seminar James Sparks (Oxford U.)

 at: 17:00 ICroom Blackett, LT2 abstract:

### 25.03.2010 (Thursday)

#### M2-branes at hypersurface singularities and their deformations

Regular Seminar James Sparks (Oxford)

 at: 14:00 QMWroom E303 Queens Building abstract: I will introduce a family of supersymmetric Chern-Simons-matter theories in d=2+1 dimensions, labelled by a positive integer n, and argue using a number of different dual descriptions that these describe the worldvolume dynamics of M2-branes at a corresponding family of four-fold hypersurface singularities (the n=1 theory being the ABJM theory). The IR properties of these theories and their deformations are also studied.

### 13.01.2010 (Wednesday)

#### M2-branes at hypersurface singularities and their deformations

Regular Seminar James Sparks (Oxford)

 at: 13:15 KCLroom 423 abstract:

### 16.03.2009 (Monday)

String Theory & Geometry Seminar James Sparks (Oxford)

 at: 13:00 ICroom IMS seminar room abstract:

### 17.04.2008 (Thursday)

#### Symmetry-breaking vacua and baryon condensates in AdS/CFT

Regular Seminar James Sparks (Oxford)

 at: 14:00 QMWroom 410 abstract:

### 14.03.2008 (Friday)

#### Sasaki-Einstein Geometry.

Regular Seminar James Sparks (Oxford University)

 at: 13:30 ICroom 140 abstract: Sasakian geometry is the odd-dimensional cousin of Kahler geometry. Although the two are very closely related, there are some interesting differences. I will give an introduction to Sasakian, and in particular Sasaki-Einstein, geometry, and review some of the developments in this subject over the last few years. In particular I'll cover explicit constructions, toric Sasakian geometry, and obstructions. Some of these results also provide new insights into Kahler geometry - for example, I'll describe very simple new obstructions to the existence of Kahler-Einstein metrics on Fano orbifolds.