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Holographic model for antiferromagnetic quantum phase transition induced by magnetic field

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journal contribution
posted on 13.11.2015, 11:51 by Rong-Gen Cai, Run-Qiu Yang, Feodor Kusmartsev
We propose a gravity dual of antiferromagnetic quantum phase transition induced by magnetic field and study the critical behavior around the quantum critical point. It turns out that the boundary critical theory is a strong coupling theory with dynamic exponent z ¼ 2 and that the hyperscaling law is violated and logarithmic corrections appear near the quantum critical point. Some novel scaling relations are predicated, which can be tested by experiment data in the future. We also make some comparison with experimental data on low-dimensional magnets BiCoPO5 and pyrochlores Er2−2xY2xTi2O7.

Funding

This work was supported in part by the National Natural Science Foundation of China (Grants No. 10821504, No. 11035008, No. 11375247, and No. 11435006).

History

School

  • Science

Department

  • Physics

Published in

PHYSICAL REVIEW D

Volume

92

Issue

8

Pages

? - ? (6)

Citation

CAI, R.G., YANG, R.Q. and KUSMARTSEV, F.V., 2015. Holographic model for antiferromagnetic quantum phase transition induced by magnetic field. Physical Review D, Particles, Fields, Gravitation, and Cosmology, 92, 086001.

Publisher

© American Physical Society

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2015

Notes

This published version of this paper is available online at: http://dx.doi.org/10.1103/PhysRevD.92.086001. Please see http://journals.aps.org/authors/transfer-of-copyright-agreement for terms and conditions regarding re-use of this article.

ISSN

1550-7998

Language

en

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