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16 papers found.
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Magnetoresistance in relativistic hydrodynamics without anomalies

We present expressions for the magnetoconductivity and the magnetoresistance of a strongly interacting metal in 3 + 1 dimensions, derivable from relativistic hydrodynamics. Such an approach is suitable for ultraclean metals with emergent Lorentz invariance. When this relativistic fluid contains chiral anomalies, it is known to exhibit longitudinal negative magnetoresistance. We ...

More Abelian dualities in 2 + 1 dimensions

We expand on the recent derivation of 3d dualities using bosonization. We present in some detail a general class of Abelian duals.

Supersymmetric Adler functions and holography

We perform several tests on a recent proposal by Shifman and Stepanyantz for an exact expression for the current correlation functions in supersymmetric gauge theories. We clarify the meaning of the relation in superconformal theories. In particular we show that it automatically follows from known relations between the current correlation functions and anomalies. It therefore also ...

Multiband models for field theories with anomalous current dimension

We give simple examples of weakly coupled or free quantum mechanical systems that exhibit scale invariance with an anomalous dimension for a conserved current. In these models scaling as an exact symmetry only emerges in a large N limit, but it remains as an approximate symmetry even at finite N.

Holographic black hole chemistry

Thermodynamic quantities associated with black holes in Anti-de Sitter space obey an interesting identity when the cosmological constant is included as one of the dynamical variables, the generalized Smarr relation. We show that this relation can easily be understood from the point of view of the dual holographic field theory. It amounts to the simple statement that the extensive ...

Warped AdS 6 × S 2 in Type IIB supergravity I: local solutions

We investigate the existence of solutions with 16 residual supersymmetries to Type IIB supergravity on a space-time of the formc AdS 6×S 2 warped over a two-dimensional Riemann surface Σ. The SO(2, 5) × SO(3) isometry extends to invariance under the exceptional Lie superalgebra F (4). In the present paper, we construct the general Ansatz compatible with these symmetries, derive the ...

Unparticles and anomalous dimensions in the cuprates

Motivated by the overwhelming evidence some type of quantum criticality underlies the power-law for the optical conductivity and T−linear resistivity in the cuprates, we demonstrate here how a scale-invariant or unparticle sector can lead to a unifying description of the observed scaling forms. We adopt the continuous mass formalism or multi band (flavor) formalism of the ...

Revisiting non-relativistic limits

We show that the full spurionic symmetry of Galilean-invariant field theories can be deduced when those theories are the limits of relativistic parents. Under the limit, the non-relativistic daughter couples to Newton-Cartan geometry together with all of the symmetries advocated in previous work, including the recently revived Milne boosts. Our limit is a covariant version of the ...

Supersymmetric D3/D7 for holographic flavors on curved space

We derive a new class of supersymmetric D3/D7 brane configurations, which allow to holographically describe \( \mathcal{N}=4 \) SYM coupled to massive \( \mathcal{N}=2 \) flavor degrees of freedom on spaces of constant curvature. We systematically solve the κ-symmetry condition for D7-brane embeddings into AdS4-sliced AdS5×S5, and find supersymmetric embeddings in a simple closed ...

Conductivities for hyperscaling violating geometries

Andreas Karch 0 Open Access 0 c The Authors. Article funded by SCOAP 0 0 Department of Physics, University of Washington , Seattle, WA 98195, U.S.A We show that many results about holographic

Generalized gravitational entropy of probe branes: flavor entanglement holographically

Andreas Karch 0 Christoph F. Uhlemann 0 0 Department of Physics, University of Washington , Seattle, WA 98195-1560, U.S.A The notion of generalized gravitational entropy introduced by Lewkowycz

Minimal area submanifolds in AdS × compact

C. Robin Graham 1 Andreas Karch 0 Open Access c The Authors. Article funded by SCOAP 0 Department of Physics, University of Washington , Seattle, WA 98195-1560, U.S.A 1 Department of Mathematics

Entanglement entropy for probe branes

We give a prescription for calculating the entanglement entropy in holographic probe brane systems by systematically taking the leading order backreaction of the probe brane into account. We find a simple compact double integral formula, which is insensitive to many details of the backreaction, most notably the internal space or the non-metric fields sourced by the probe. We ...

Flavored \( \mathcal{N} \) = 4 SYM — a highly entangled quantum liquid

Han-Chih Chang 0 Andreas Karch 0 Christoph F. Uhlemann 0 0 Department of Physics, University of Washington , 3910 15th Ave. NE, Seattle, WA 98195-1560, U.S.A We study N = 4 SYM theory coupled to

Towards a holographic Bose-Hubbard model

We present a holographic construction of the large-N Bose-Hubbard model. The model is based on Maxwell fields coupled to charged scalar fields on the AdS 2 hard wall. We realize the lobe-shaped phase structure of the Bose-Hubbard model and find that the model admits Mott insulator ground states in the limit of large Coulomb repulsion. In the Mott insulator phases, the bosons are ...

Charged black holes in Hořava gravity

We explore static spherically symmetric black hole solutions allowing a bulk U(1) vector field in the khronometric formulation of Hořava gravity by way of EinsteinÆther. We examine analytic solutions and study numerical results in the limit that the khronon does not backreact on the metric.