60 citations · 123 across the 7 of their papers we have counts for
7 papers
Finite level geometry of fractional branes
Albrecht Wurtz
In some CFT models of simple current type, which are used to describe string theory on orbifolds and (adjoint) cosets of Lie groups, there arise fixed points of the simple current…
D-branes in the diagonal SU(2) coset
Albrecht Wurtz
The symmetry preserving D-branes in coset theories have previously been described as being centered around projections of products of conjugacy classes in the underlying Lie groups…
On the geometry of coset branes
Jurgen Fuchs, Albrecht Wurtz
Coset models and their symmetry preserving branes are studied from a representation theoretic perspective, relating e.g. the horizontal branching spaces to a truncation of the spac…
Topological defects in the edge state structure in a bilayer electron system
E. V. Deviatov, V. T. Dolgopolov, A. Wurtz +5
We experimentally demonstrate, for the first time, formation of point-like topological defects in the edge state structure in the quantum Hall effect regime. By using of a selectiv…
D-branes in lens spaces
P. Bordalo, A. Wurtz
We realize the CFT with target a lens space SU(2)/Z_l as a simple current construction. This allows us to compute the boundary states and the annuli coefficients, and in particular…
Observation of two relaxation mechanisms in transport between spin split edge states at high imbalance
E. V. Deviatov, A. Wurtz, A. Lorke +4
Using a quasi-Corbino geometry to directly study electron transport between spin-split edge states, we find a pronounced hysteresis in the I-V curves, originating from slow relaxat…