BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Anomalous transport\, massive gravity theories and holographic mom
entum relaxation
DTSTART;VALUE=DATE-TIME:20180803T171000Z
DTEND;VALUE=DATE-TIME:20180803T171100Z
DTSTAMP;VALUE=DATE-TIME:20201126T070211Z
UID:indico-contribution-3051373@indico.cern.ch
DESCRIPTION:Speakers: Eugenio Megias (University of Granada)\nQuantum anom
alies give rise to new transport phenomena. In particular a magnetic field
can induce an anomalous current via the chiral magnetic effect [1] and a
vortex in the relativistic fluid can also induce a current via the chiral
vortical effect [2]. The related transport coefficients can be calculated
via Kubo formulae [3\,4\,5]. These effects can be studied in holographic m
odels with Chern-Simons couplings dual to anomalies in field theory.\n\nWe
study a holographic model with translation symmetry breaking based on lin
ear massless scalar field backgrounds. We compute the electric DC conducti
vity and find that it can vanish for certain values of the translation sym
metry breaking couplings. Then we compute the chiral magnetic and chiral v
ortical conductivities. They are completely independent of the holographic
disorder couplings and take the usual values in terms of chemical potenti
al and temperature. To arrive at this result we suggest a new definition o
f energy-momentum tensor in presence of the gravitational Chern-Simons cou
pling. \n\nSome related works are [6\,7]. This work is based on [8].\n\n\n
[1] K. Fukushima\, D. Kharzeev\, H.J. Warringa\, Phys. Rev. D78 (2008) 074
003. \n[2] D.T.Son and P. Surowka\, Phys. Rev. Lett. 103 (2009) 191601. \n
[3] I. Amado\, K. Landsteiner\, F. Pena-Benitez\, JHEP 1105:081 (2011). \n
[4] K. Landsteiner\, E. Megias\, F. Pena-Benitez\, Phys. Rev. Lett. 107 (2
011) 021601. \n[5] K. Landsteiner\, E. Megias\, L. Melgar\, F. Pena-Benite
z\, JHEP 1109:121 (2011). \n[6] B. Gouteraux\, E. Kiritsis\, W-J Li\, JHEP
1604 (2016) 122. \n[7] M. Baggioli\, O. Pujolas\, JHEP 1701 (2017) 040.\n
[8] C. Copetti\, J. Fernandez-Pendas\, K. Landsteiner\, E. Megias\, JHEP 1
709 (2017) 004.\n\nhttps://indico.cern.ch/event/648004/contributions/30513
73/
LOCATION:Arts building
URL:https://indico.cern.ch/event/648004/contributions/3051373/
END:VEVENT
END:VCALENDAR