Quick search Find article
Quick search
Find article

Topics on the geometry of D-brane charges and Ramond-Ramond fields

Fabio Ferrari Ruffino

Show affiliations


In this paper we discuss some topics on the geometry of type II superstring backgrounds with D-branes, in particular on the geometrical meaning of the D-brane charge, the Ramond-Ramond fields and the Wess-Zumino action. We see that, depending on the behaviour of the D-brane on the four non-compact space-time directions, we need different notions of homology and cohomology to discuss the associated fields and charge: we give a mathematical definition of such notions and show their physical applications. We then discuss the problem of corretly defining Wess-Zumino action using the theory of p-gerbes. Finally, we recall the so-called *-problem and make some brief remarks about it.

Keywords

Differential and Algebraic Geometry

D-branes

 

E-print Number: 0909.0689

Cited: by |

Refers: to

PACS

11.25.Uv D branes

11.27.+d Extended classical solutions; cosmic strings, domain walls, texture

02.40.-k Geometry, differential geometry, and topology

Subjects

Mathematical physics

Particle physics and field theory

Dates

Issue 11 (November 2009)

Received 7 September 2009, accepted for publication 20 October 2009

Published 4 November 2009



View by subject




Export






Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.