https://doi.org/10.1140/epjc/s10052-017-5241-7
Regular Article - Theoretical Physics
Effect of quintessence on holographic fermionic spectrum
1
Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou University, Yangzhou, 225009, China
2
Instituto de Física, Pontificia Universidad Católica de Valparaíso, Casilla, 4059, Valparaiso, Chile
3
Institute of Gravitation and Cosmology, Department of Physics, School of Mathematics and Physics, Bohai University, Jinzhou, 121013, China
* e-mail: jianpinwu@mail.bnu.edu.cn
Received:
12
July
2017
Accepted:
14
September
2017
Published online:
9
October
2017
In this letter, we investigate the holographic fermionic spectrum without/with dipole coupling dual to the Reissner–Nordström anti-de Sitter (RN–AdS) black brane surrounded by quintessence. We find that the low energy excitation of this fermionic system without dipole coupling behaves as a non-Fermi liquid. In particular, the introduction of quintessence aggravates the degree of deviation from a Fermi liquid. For the system with dipole coupling, the phase transition from (non-)Fermi liquid to Mott phase can be observed. The ratio between the width of gap and the critical temperature, beyond which the gap closes, is also worked out. We find that this ratio is larger than that of the holographic fermionic system dual to the RN–AdS black brane and even the material of 
. It means that our holographic system with quintessence can model new phenomena of the condensed matter system and provide some new insights in their regard.
© The Author(s), 2017
