Jan’s Publications

@article{WOS:000310851800022,

title = {Fluctuations in finite density holographic quantum liquids},

author = {Mikhail Goykhman and Andrei Parnachev and Jan Zaanen},

doi = {10.1007/JHEP10(2012)045},

issn = {1029-8479},

year  = {2012},

date = {2012-10-01},

journal = {JOURNAL OF HIGH ENERGY PHYSICS},

number = {10},

publisher = {SPRINGER},

address = {233 SPRING ST, NEW YORK, NY 10013 USA},

abstract = {We study correlators of the global U(1) currents in holographic models which involve N = 4 SYM coupled to the finite density matter in the 

 probe brane sector. We find the spectral density associated with the 

 longitudinal response to be exhausted by the zero sound pole and argue 

 that this could be consistent with the behavior of Fermi liquid with 

 vanishing Fermi velocity. However the transversal response shows an 

 unusual momentum independent behavior. Inclusion of magnetic field leads 

 to a gap in the dispersion relation for the zero sound mode propagating 

 in the plane of magnetic field. For small values of the magnetic field B 

 the gap in the spectrum scales linearly with B, which is consistent with 

 Kohn's theorem for nonrelativistic fermions with pairwise interaction. 

 We do not find signatures of multiple Landau levels expected in Landau 

 Fermi liquid theory. We also consider the influence of generic higher 

 derivative corrections on the form of the spectral function.},

keywords = {Gauge-gravity correspondence; Intersecting branes models; AdS-CFT   Correspondence; Holography and condensed matter physics (AdS/CMT)},

pubstate = {published},

tppubtype = {article}

}