4 papers
Dark Sound
Alexander Balatsky, Benjo Fraser, Henrik Roising
We discuss the axion dark matter (DM) condensate and the consequences the interactions of dark matter would have on the spectrum of collective modes. We find that DM self-interacti…
Axion-matter coupling in multiferroics
Henrik S. Røising, Benjo Fraser, Sinéad M. Griffin +4
Multiferroics (MFs) are materials with two or more ferroic orders, like spontaneous ferroelectric and ferromagnetic polarizations. Such materials can exhibit a magnetoelectric effe…
D-branes (or not) in the non-Abelian T-dual of the SU(2) WZW model
Benjo Fraser
Following on from arXiv:1805.03657, we consider open strings in the non-Abelian T-dual of the WZW model, with respect to the vector isometry. Since in this case t…
Non-Abelian T-duality and Modular Invariance
Benjo Fraser, Dimitrios Manolopoulos, Konstantinos Sfetsos
Two-dimensional -models corresponding to coset CFTs of the type admit a zoom-in limit invol…