https://doi.org/10.1140/epjc/s10052-018-6100-x
Regular Article - Theoretical Physics
Momentum dissipation and holographic transport without self-duality
1
Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou University, Yangzhou, 225009, China
2
Department of Physics, School of Mathematics and Physics, Bohai University, Jinzhou, 121013, China
* e-mail: jianpinwu@mail.bnu.edu.cn
Received:
4
November
2017
Accepted:
24
July
2018
Published online:
1
August
2018
We explore the response of the momentum dissipation introduced by spatial linear axionic fields in a holographic model without self-duality, which is broke by Weyl tensor coupling to Maxwell field. It is found that for the positive Weyl coupling parameter 
, the momentum dissipation, characterized by parameter 
, drives an incoherent metallic state with a peak at low frequency into another incoherent metallic phase with a dip. While for 
, an oppositive scenario is observed. Another interesting feature in our model is that for some observables including the DC conductivity, diffusion constant and susceptibility, there exists a certain value of , for which these observables are independent of 
. Finally, the electromagnetic (EM) duality is also studied and there is also a specific value of , for which the particle-vortex duality related by the change of the sign of in the boundary theory holds better than for other values of .
© The Author(s), 2018
