15669145
Aspects of Puff Field Theory
We describe some features of the recently constructed ``Puff Field Theory,'' and present arguments in favor of it being a field theory decoupled from gravity. We construct its supergravity dual and calculate the entropy of this theory in the limit of large 't Hooft coupling. We also determine the leading irrelevant operator that governs its deviation from = 4 super Yang-Mills theory.
119213544
Aging logarithmic conformal field theory: a holographic view
A bstractWe consider logarithmic extensions of the correlation and response functions of scalar operators for the systems with aging as well as Schrödinger symmetry. Aging is known to be the simplest nonequilibrium phenomena, and its physical significances can be understood by the two-time correlation and response functions. Their logarithmic part is completely fixed by the bulk geometry in terms of the conformal weight of the dual operator and the dual particle number.Motivated by recent experimental realizations of Kardar-Parisi-Zhang universality class in growth phenomena and its subsequent theoretical extension to aging, we investigate our two-time correlation functions out of equilibrium, which show several qualitatively different behaviors depending on the parameters in our theory. They exhibit either growing or aging, i.e. power-law decaying, behaviors for the entire range of our scaling time. Surprisingly, for some parameter ranges, they exhibit growing at early times as well as aging at later times.
8879998
World Sheet Commuting beta-gamma CFT and Non-Relativistic StringTheories
We construct a sigma model in two dimensions with Galilean symmetry in flat target space similar to the sigma model of the critical string theory with Lorentz symmetry in 10 flat spacetime dimensions. This is motivated by the works of Gomis and Ooguri[1] and Danielsson et. al.[2, 3]. Our theory is much simpler than their theory and does not assume a compact coordinate. This non-relativistic string theory has a bosonic matter {beta}{gamma} CFT with the conformal weight of {beta} as 1. It is natural to identify time as a linear combination of {gamma} and {bar {gamma}} through an explicit realization of the Galilean boost symmetry. The angle between {gamma} and {bar {gamma}} parametrizes one parameter family of selection sectors. These selection sectors are responsible for having a non-relativistic dispersion relation without a nontrivial topology in the non-relativistic setup, which is one of the major differences from the previous works[1, 2, 3]. This simple theory is the non-relativistic analogue of the critical string theory, and there are many different avenues ahead to be investigated. We mention a possible consistent generalization of this theory with different conformal weights for the {beta}{gamma} CFT. We also mention supersymmetric generalizations of these theories.
118711305
Strange Metallic Behaviour and the Thermodynamics of Charged Dilatonic Black Holes
We review a recent holographic analysis arXiv:1005.4690 of charged black holes with scalar hair in view of their applications to the cuprate high temperature superconductors. We show in particular that these black holes show an interesting phase structure including critical behaviour at zero temperature or charge, describe both conductors and insulators (including holographic Mott-like insulators), generically have no residual entropy and exhibit experimentally observed scaling relations between electronic entropy, specific heat and (linear) DC resistivity. Transport properties are discussed in the companion contribution to these proceedings.
118450242
Charged Dilatonic Black Holes and their Transport Properties
Crete Center for Theoretical Physics, Department of Physics, University of Crete, 71003 Heraklion, GreeceKey words Dilatonic Black Holes, Transport Properties, Effective Holographic Theories.We brieﬂy explain the consistency conditions imposed on the effective holographic theories, which are pa-rameterized by two real exponents (γ,δ)that control the IR dynamics. The general scaling of DC resistivitywith temperature at low temperature and AC conductivity at low frequency across the whole (γ,δ)planeare explained. There is a codimension-one region where the DC resistivity is linear in the temperature. Formassive carriers, it is shown that when the scalar operator is not the dilaton, the DC resistivity scales as theheat capacity (and entropy) for (2+1)-dimensional systems. Regions are identiﬁed where the theory atﬁnite density is a Mott-like insulator. This contribution is based on [C. Charmousis, et al. JHEP 1011, 151(2010)] [1] with emphasis on the transport properties of charged dilatonic black holes with potential.
119242893
Finite temperature aging holography
A bstractWe construct the gravity background which describes the dual field theory with aging invariance. We choose the decay modes of the bulk scalar field in the internal spectator direction to obtain the dissipative behavior of the boundary correlation functions of the dual scalar fields. In particular, the two-time correlation function at zero temperature has the characteristic features of the aging system: power law decay, broken time translation and dynamical scaling. We also construct the black hole backgrounds with asymptotic aging invariance. We extensively study characteristic behavior of the finite temperature two-point correlation function via analytic and numerical methods.
117807581
J/$\psi$ suppression with respect to the reaction plane in Au+Au collisions at $\sqrt{s}$=200 GeV by the PHENIX detector