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We investigate bulk and holographic features of finite-temperature black brane solutions of 4D anti-de Sitter Einstein-Maxwell-dilaton-gravity (EMDG). We construct, numerically, black branes endowed with non trivial scalar hairs for broad…

High Energy Physics - Theory · Physics 2011-04-20 Mariano Cadoni , Paolo Pani

We report the experimental realization of a correlated insulating phase in 2D GaAs/AlGaAs heterostructures at low electron densities in a limited window of background disorder. This has been achieved at mesoscopic length scales, where the…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. Baenninger , A. Ghosh , M. Pepper , H. E. Beere , I. Farrer , P. Atkinson , D. A. Ritchie

We study the dependence of beta-function on running coupling constant in holographic models supported by Einstein-dilaton-Maxwell action for light and heavy quarks. Although, in the previous paper [arXiv:2402.14512], we considered different…

High Energy Physics - Theory · Physics 2024-07-22 Irina Ya. Aref'eva , Ali Hajilou , Pavel Slepov , Marina Usova

Building on [1], we examine a holographic model in which a U(1) symmetry and translational invariance are broken spontaneously at the same time. The symmetry breaking is realized through the St\"{u}ckelberg mechanism, and leads to a scalar…

High Energy Physics - Theory · Physics 2024-04-10 Sera Cremonini , Li Li , Jie Ren

Heterogeneous media constitute random disordered environments where transport is drastically hindered. Employing extensive molecular dynamics simulations, we investigate the spatio-temporal dynamics of tracer particles in the Lorentz model…

Statistical Mechanics · Physics 2013-02-14 Markus Spanner , Simon K. Schnyder , Felix Höfling , Thomas Voigtmann , Thomas Franosch

In this work, we study Metal-Insulator transition in a holographic model containing an interaction between the order parameter and charge-carrier density. It turns out that the impurity density of this model can drive the phase transition…

High Energy Physics - Theory · Physics 2023-07-05 Yunseok Seo , Youngjun Ahn , Keun-Young Kim , Sang-Jin Sin , Kyung Kiu Kim

We develop the idea of an effective conformal theory describing the low-lying spectrum of the dilatation operator in a CFT. Such an effective theory is useful when the spectrum contains a hierarchy in the dimension of operators, and a small…

High Energy Physics - Theory · Physics 2011-10-11 A. Liam Fitzpatrick , Emanuel Katz , David Poland , David Simmons-Duffin

Non-monotonic differential resistance (dV/dI) is observed in magnetically induced insulating films which exhibit apparent superconductor-metal-insulator transitions in the low temperature limit; at low bias currents the nonlinear transport…

Superconductivity · Physics 2009-11-11 C. L. Vicente , Yongguang Qin , Jongsoo Yoon

Momentum relaxation can be built into many holographic models without sacrificing homogeneity of the bulk solution. In this paper we study two such models: one in which translational invariance is broken in the dual theory by…

High Energy Physics - Theory · Physics 2015-04-24 Tomas Andrade , Simon A. Gentle

Understanding heat transport in low-dimensional and nano-architectured materials remains a central challenge in nonequilibrium statistical physics due to persistent deviations from Fourier's law. These deviations are driven by…

Mesoscale and Nanoscale Physics · Physics 2026-05-15 R. A. C. Correa , K. N. M. Sharma , P. Lolur , J. van Velzen

We explore higher-derivative terms in the low-energy effective action for the dilaton, the Goldstone boson of spontaneously broken scale invariance. Focusing on the simplest holographic realization of spontaneously broken scale invariance,…

High Energy Physics - Phenomenology · Physics 2022-09-21 Csaba Csaki , Jay Hubisz , Ameen Ismail , Gabriele Rigo , Francesco Sgarlata

We investigate the infrared behavior of the spectrum of scalar-dressed, asymptotically Anti de Sitter (AdS) black brane (BB) solutions of effective holographic models. These solutions describe scalar condensates in the dual field theories.…

High Energy Physics - Theory · Physics 2015-06-15 Mariano Cadoni , Paolo Pani , Matteo Serra

We provide a description of phase transitions at finite temperature in strongly coupled field theories using holography. For this purpose, we introduce a general class of gravity duals to superconducting theories that exhibit various types…

High Energy Physics - Theory · Physics 2010-04-06 Sebastian Franco , Antonio M. Garcia-Garcia , Diego Rodriguez-Gomez

We continue the study of inflationary fluctuations in Holographic Space Time models of inflation. We argue that the holographic theory of inflation provides a physical context for what is often called dS/CFT. The holographic theory is a…

High Energy Physics - Theory · Physics 2013-06-19 Tom Banks , Willy Fischler , T. J. Torres , Carroll L. Wainwright

The angular power spectrum is investigated in the model of supergravity, incorporating the target-space duality and the non-perturbative gaugino condensation in the hidden sector. The inflation and supersymmetry breaking occur at once by…

High Energy Physics - Phenomenology · Physics 2007-05-23 Mitsuo J. Hayashi , Shiro Hirai , Yusuke Okame , Tomoki Watanabe

Extremal planar black holes of four dimensional Einstein-Maxwell theory with a negative cosmological constant have an AdS$_2 \times \R^2$ near horizon geometry. We show that this near horizon geometry admits a deformation to a two parameter…

High Energy Physics - Theory · Physics 2015-06-19 Sean A. Hartnoll , Jorge E. Santos

Interest in high entropy alloy thermoelectric materials is predicated on achieving ultralow lattice thermal conductivity $\kappa\sub{L}$ through large compositional disorder. However, here we show that for a given mechanism, such as mass…

We investigate spatially inhomogeneous solutions in a top-down holographic model: the D3/D7 model which provides a holographic description of the chiral phase transition for a finite external magnetic field, chemical potential, and…

High Energy Physics - Theory · Physics 2024-05-28 Shuta Ishigaki , Masataka Matsumoto , Ryosuke Yoshii

Monolayers of semiconducting transition metal dichalcogenides are a strongly emergent platform for exploring quantum phenomena in condensed matter, building novel opto-electronic devices with enhanced functionalities. Due to their atomic…

Engineering thermal transport in two dimensional materials, alloys and heterostructures is critical for the design of next-generation flexible optoelectronic and energy harvesting devices. Direct experimental characterization of lattice…

Materials Science · Physics 2021-02-22 Aravind Krishnamoorthy , Nitish Baradwaj , Aiichiro Nakano , Rajiv K. Kalia , Priya Vashishta