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Título

Anomalous transport and holographic momentum relaxation

Palabras clave AdS-CFT Correspondence
Anomalies in Field and String Theories
Holography and condensed matter physics (AdS/CMT)
Fecha de publicación 4-sep-2017
EditorSpringer
ResumenThe chiral magnetic and vortical effects denote the generation of dissipationless currents due to magnetic fields or rotation. They can be studied in holographic models with Chern-Simons couplings dual to anomalies in field theory. We study a holographic model with translation symmetry breaking based on linear massless scalar field backgrounds. We compute the electric DC conductivity and find that it can vanish for certain values of the translation symmetry breaking couplings. Then we compute the chiral magnetic and chiral vortical conductivities. They are completely independent of the holographic disorder couplings and take the usual values in terms of chemical potential and temperature. To arrive at this result we suggest a new definition of energy-momentum tensor in presence of the gravitational Chern-Simons coupling.
URI http://hdl.handle.net/10261/154925
DOI10.1007/JHEP09(2017)004
ISSN1029-8479
Aparece en las colecciones: Sponsoring Consortium for Open Access Publishing in Particle Physics - SCOAP3
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