Magnetic Catalysis in AdS4
High Energy Physics - Theory
2015-05-30 v4
Abstract
We study the formation of fermion condensates in Anti de Sitter space. In particular, we describe a novel version of magnetic catalysis that arises for fermions in asymptotically AdS4 geometries which cap off in the infra-red with a hard wall. We show that the presence of a magnetic field induces a fermion condensate in the bulk that spontaneously breaks CP symmetry. From the perspective of the dual boundary theory, this corresponds to a strongly coupled version of magnetic catalysis in d=2+1.
Cite
@article{arxiv.1110.5902,
title = {Magnetic Catalysis in AdS4},
author = {Stefano Bolognesi and David Tong},
journal= {arXiv preprint arXiv:1110.5902},
year = {2015}
}
Comments
22 pages, 4 figures. v2: References added, factors of 2 corrected, extra comments added in appendix. v3: extra comments about fermion modes in a hard wall background. v4: A final factor of 2