Momentum dissipation and holographic transport without self-duality
Abstract 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 $$\gamma >0$$ γ>0 , the momen...
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doaj-a2b0400828b84a5e87a9bb3473e63d5a2020-11-25T02:03:06ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-08-0178811910.1140/epjc/s10052-018-6100-xMomentum dissipation and holographic transport without self-dualityJian-Pin Wu0Xiao-Mei Kuang1Guoyang Fu2Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou UniversityCenter for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou UniversityDepartment of Physics, School of Mathematics and Physics, Bohai UniversityAbstract 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 $$\gamma >0$$ γ>0 , the momentum dissipation, characterized by parameter $${\hat{\alpha }}$$ α^ , drives an incoherent metallic state with a peak at low frequency into another incoherent metallic phase with a dip. While for $$\gamma <0$$ γ<0 , 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 $${\hat{\alpha }}$$ α^ , for which these observables are independent of $$\gamma $$ γ . Finally, the electromagnetic (EM) duality is also studied and there is also a specific value of $${\hat{\alpha }}$$ α^ , for which the particle-vortex duality related by the change of the sign of $$\gamma $$ γ in the boundary theory holds better than for other values of $${\hat{\alpha }}$$ α^ .http://link.springer.com/article/10.1140/epjc/s10052-018-6100-x |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jian-Pin Wu Xiao-Mei Kuang Guoyang Fu |
spellingShingle |
Jian-Pin Wu Xiao-Mei Kuang Guoyang Fu Momentum dissipation and holographic transport without self-duality European Physical Journal C: Particles and Fields |
author_facet |
Jian-Pin Wu Xiao-Mei Kuang Guoyang Fu |
author_sort |
Jian-Pin Wu |
title |
Momentum dissipation and holographic transport without self-duality |
title_short |
Momentum dissipation and holographic transport without self-duality |
title_full |
Momentum dissipation and holographic transport without self-duality |
title_fullStr |
Momentum dissipation and holographic transport without self-duality |
title_full_unstemmed |
Momentum dissipation and holographic transport without self-duality |
title_sort |
momentum dissipation and holographic transport without self-duality |
publisher |
SpringerOpen |
series |
European Physical Journal C: Particles and Fields |
issn |
1434-6044 1434-6052 |
publishDate |
2018-08-01 |
description |
Abstract 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 $$\gamma >0$$ γ>0 , the momentum dissipation, characterized by parameter $${\hat{\alpha }}$$ α^ , drives an incoherent metallic state with a peak at low frequency into another incoherent metallic phase with a dip. While for $$\gamma <0$$ γ<0 , 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 $${\hat{\alpha }}$$ α^ , for which these observables are independent of $$\gamma $$ γ . Finally, the electromagnetic (EM) duality is also studied and there is also a specific value of $${\hat{\alpha }}$$ α^ , for which the particle-vortex duality related by the change of the sign of $$\gamma $$ γ in the boundary theory holds better than for other values of $${\hat{\alpha }}$$ α^ . |
url |
http://link.springer.com/article/10.1140/epjc/s10052-018-6100-x |
work_keys_str_mv |
AT jianpinwu momentumdissipationandholographictransportwithoutselfduality AT xiaomeikuang momentumdissipationandholographictransportwithoutselfduality AT guoyangfu momentumdissipationandholographictransportwithoutselfduality |
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