Instability of N=2 gauge theory in compact space with an isospin chemical potential

Chunlen, Suphakorn; Peeters, Kasper; Vanichchapongjaroen, Pichet; Zamaklar, Marija

Abstract

We investigate N=2 super-Yang-Mills theory on a three sphere in the presence of an isospin chemical potential at strong coupling using the AdS/CFT correspondence. This system exhibits an instability for sufficiently large values of the chemical potential. In contrast to other related models, the first excitation to condense is not a vector meson but rather a scalar charged under the global SO(4) symmetry group. Furthermore, the spectrum of fluctuations exhibits an interesting cross-over behaviour as a function of the dimensionless temperature. We construct the new ground state of the non-linear theory.

Citation

Chunlen, S., Peeters, K., Vanichchapongjaroen, P., & Zamaklar, M. (2013). Instability of N=2 gauge theory in compact space with an isospin chemical potential. Journal of High Energy Physics, 2013(1), Article 35. https://doi.org/10.1007/jhep01%282013%29035

• Journal Article Type: Article
• Publication Date: Jan 4, 2013
• Deposit Date: Nov 5, 2012
• Publicly Available Date: May 12, 2014
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2013
• Issue: 1
• Article Number: 35
• DOI: https://doi.org/10.1007/jhep01%282013%29035