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Charge transport in holography with momentum dissipation
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.
2014 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 4, 181- p.Article in journal (Refereed) Published
Abstract [en]

In this work, we examine how charge is transported in a theory where momentum is relaxed by spatially dependent, massless scalars. We analyze the possible IR phases in terms of various scaling exponents and the (ir) relevance of operators in the IR effective holographic theory with a dilaton. We compute the (finite) resistivity and encounter broad families of (in) coherent metals and insulators, characterized by universal scaling behaviour. The optical conductivity at zero temperature and low frequencies exhibits power tails which can violate scaling symmetries, due to the running of the dilaton. At low temperatures, our model captures features of random-field disorder.

Place, publisher, year, edition, pages
2014. no 4, 181- p.
Keyword [en]
Holography and condensed matter physics (AdS/CMT), Gauge-gravity correspondence, AdS-CFT Correspondence
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-146149DOI: 10.1007/JHEP04(2014)181ISI: 000335732900001Scopus ID: 2-s2.0-84901423879OAI: oai:DiVA.org:kth-146149DiVA: diva2:722670
Note

QC 20140609

Available from: 2014-06-09 Created: 2014-06-09 Last updated: 2017-12-05Bibliographically approved

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Goutéraux, Blaise
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