Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2010-07-20
JHEP 1010:092,2010
Physics
High Energy Physics
High Energy Physics - Theory
Minor changes, 17 pages, 5 figures
Scientific paper
10.1007/JHEP10(2010)092
We model competition between different macroscopic orders in an holographic context. The orders we considered are a superconducting order, modeled by a charged scalar field, and a magnetic order modeled by a neutral scalar field. We also discuss the case of two competing scalars coupled to a single gauge field. In all cases discussed here the phases tend to compete, rather than enhance each other. The condensation of one scalar hinders any further instabilities, unless we have a sufficiently strong repulsive interactions between the bulk scalars. We provide both analytic arguments and numerical demonstration of this fact. Based on the cases discussed here, we conjecture that holographic orders tend to compete for attractive bulk interactions, including gravity, and to cooperate, or be mutually enhancing, for repulsive bulk interactions between the corresponding order parameters.
Basu Pallab
He Jianyang
Mukherjee Anindya
Rozali Moshe
Shieh Hsien-Hang
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