activity
19972001
most citedNoncommutative Geometry from D0-branes in a Background B-field

188 citations · 338 across the 12 of their papers we have counts for

collaborators

12 papers

hep-th2001★ 2 cited

D-branes in Nonabelian Orbifolds with Discrete Torsion

Tamas Hauer, Morten Krogh

We study IIB string theory on the orbifold R^8/Gamma with discrete torsion where Gamma is an arbitrary subgroup of U(4). We extend some previously known identities for discrete tor…

hep-th2000★ 13 cited

Chiral Compactifications of 6D Conformal Theories

Chang S. Chan, Ori J. Ganor, Morten Krogh

We construct chiral N=1 gauge theories in 4D by compactifying the 6D Blum-Intriligator (1,0) theories of 5-branes at singularities on with a nontrivial bundle of the gl…

hep-th1999★ 30 cited

S-duality and Tensionless 5-branes in Compactified Heterotic String Theory

Morten Krogh

We give a simple proof of the known S-duality of Heterotic String theory compactified on a T^6. Using this S-duality we calculate the tensions for a class of BPS 5-branes in Hetero…

hep-th1999★ 3 cited

Noncommutative Geometry and Twisted Little-String Theories

Morten Krogh

In this thesis we will discuss various aspects of noncommutative geometry and compactified Little-String theories. First we will give an introduction to the use of noncommutative g…

hep-th1998★ 1 cited

Instantons on a Non-commutative from Twisted (2,0) and Little-String Theories

Yeuk-Kwan E. Cheung, Ori J. Ganor, Morten Krogh +1

We show that the moduli space of the and little-string theories compactified on with R-symmetry twists is equal to the moduli space of U(1) instantons on a non-commut…

hep-th1998

Correlation functions of the global E8 symmetry currents in the Heterotic 5-brane theory

Morten Krogh

We consider the 5-brane placed at one end of the world in the Heterotic theory. The low energy theory is a 6 dimensional superconformal theory with a…