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Holographic modeling of strongly correlated many-body systems motivates the study of novel spacetime geometries where the scaling behavior of quantum critical systems is encoded into spacetime symmetries. Einstein-Dilaton-Maxwell theory has…

General Relativity and Quantum Cosmology · Physics 2013-07-11 V. Keranen , L. Thorlacius

Very strong electromagnetic field can be generated in peripheral relativistic heavy ion collisions. This work is devoted to exploring the interplay between the effects of a constant external electric field and confining potential on…

Nuclear Theory · Physics 2024-09-17 Jiayun Xiang , Gaoqing Cao

We investigate a quantum Heisenberg model with both antiferromagnetic and disordered nearest-neighbor couplings. We use an extended dynamical mean-field approach, which reduces the lattice problem to a self-consistent local impurity problem…

Disordered Systems and Neural Networks · Physics 2009-11-13 S. Burdin , D. R. Grempel , M. Grilli

We propose a string dual to the SU(Nc) N=4 SYM coupled to Nf massless fundamental flavors in an external magnetic field. The flavors are introduced by homogeneously smeared Nf D7-branes and the external magnetic field via a non-trivial…

High Energy Physics - Theory · Physics 2011-08-10 Veselin G. Filev , Dimitrios Zoakos

The Hofstadter-Hubbard model captures the physics of strongly correlated electrons in an applied magnetic field, which is relevant to many recent experiments on Moir\'e materials. Few large-scale, numerically exact simulations exists for…

Strongly Correlated Electrons · Physics 2022-08-16 Jixun K. Ding , Wen O. Wang , Brian Moritz , Yoni Schattner , Edwin W. Huang , Thomas P. Devereaux

Despite its fundamental and practical interest, the understanding of mesoscopic effects in strongly coupled superconductors is still limited. Here we address this problem by studying holographic superconductivity in a disk and a strip of…

High Energy Physics - Theory · Physics 2013-05-30 Antonio M. García-García , Jorge E. Santos , Benson Way

We study strongly-coupled, approximately scale-invariant gauge theories, which develop a mass gap in the infrared. We argue that a large number of fermion flavours is most suitable to provide an ultraviolet completion for the composite…

High Energy Physics - Phenomenology · Physics 2021-03-25 Daniel Elander , Michele Frigerio , Marc Knecht , Jean-Loic Kneur

We analytically study the properties of a $(2+1)$-dimensional $s$-wave holographic superconductor in the presence of exponential nonlinear electrodynamics. We consider the case in which the scalar and gauge fields back react on the…

General Relativity and Quantum Cosmology · Physics 2017-01-12 Ahmad Sheykhi , Fatemeh Shaker

We derive the effect of the Schr\"odinger--Newton equation, which can be considered as a non-relativistic limit of classical gravity, for a composite quantum system in the regime of high energies. Such meson-antimeson systems exhibit very…

Quantum Physics · Physics 2015-03-27 André Großardt , Beatrix C. Hiesmayr

We consider a phenomenological holographic model, inspired by the D3/D7 system with a 2+1 dimensional intersection, at finite chemical potential and magnetic field. At large 't Hooft coupling the system is unstable and needs regularization;…

High Energy Physics - Theory · Physics 2016-02-17 Andrea Mezzalira , Andrei Parnachev

We investigate the Hall effect in a quasi one-dimensional system made of weakly coupled Luttinger Liquids at half filling. Using a memory function approach, we compute the Hall coefficient as a function of temperature and frequency in the…

Strongly Correlated Electrons · Physics 2007-12-04 G. León , C. Berthod , T. Giamarchi

We analytically as well as numerically disclose the effects of the higher order correction terms in the gravity and in the gauge field on the properties of $s$-wave holographic superconductors. On the gravity side, we consider the higher…

High Energy Physics - Theory · Physics 2018-02-27 Ahmad Sheykhi , Afsoon Ghazanfari , Amin Dehyadegari

By employing the gauge/gravity duality, we disclose the effects of the non-minimal coupling between the scalar and Maxwell fields on the holographic superconductors in the probe limit. As the background spacetime, we consider a five…

High Energy Physics - Theory · Physics 2022-12-16 Mahya Mohammadi , Ahmad Sheykhi

In the presence of chemical potential and temperature, we holographically study subregion complexity in a non-conformal quantum field theory with a critical point. We propose a new interpretation according to which the states, needing…

High Energy Physics - Theory · Physics 2023-06-14 Mohammad Ali-Akbari , Mahsa Lezgi

The lowest dimensional gluon condensate $G_2$ is analyzed at finite temperature and chemical potential using a holographic model of QCD with conformal invariance broken by a background dilaton. Starting from the free energy of the model,…

High Energy Physics - Phenomenology · Physics 2014-02-19 Pietro Colangelo , Floriana Giannuzzi , Stefano Nicotri , Fen Zuo

Holographic models in the T=0 universality class of QCD in the limit of large number N_c of colors and N_f massless fermion flavors, but constant ratio x_f=N_f/N_c, are analyzed at finite temperature. The models contain a 5-dimensional…

High Energy Physics - Phenomenology · Physics 2015-06-11 T. Alho , M. Jarvinen , K. Kajantie , E. Kiritsis , K. Tuominen

We investigated the impact of a spatially varying matter potential $\lambda$, coming from neutrino-electron forward scattering, on the emergence of fast neutrino flavor conversion (FFC) triggered by the presence of zero crossings in the…

High Energy Astrophysical Phenomena · Physics 2025-04-16 Soumya Bhattacharyya , Meng-Ru Wu , Zewei Xiong

We construct the effective Lagrangian describing the low energy excitations for Quantum Chromodynamics with two flavors at high density. The non-linear realization framework is employed to properly construct the low energy effective theory.…

High Energy Physics - Phenomenology · Physics 2009-10-31 R. Casalbuoni , Z. Duan , F. Sannino

We have analytically investigated the effects of non-linearity on the free energy and thermodynamic geometry of holographic superconductors in $2+1 -$dimensions. The non-linear effect is introduced by considering the coupling of the massive…

High Energy Physics - Theory · Physics 2017-07-11 Debabrata Ghorai , Sunandan Gangopadhyay

We investigate an anisotropic model of superconductors in the Einstein-Maxwell-dilaton theory with a charged scalar field. It is found that the critical temperature decreases as the anisotropy becomes large. We then estimate the energy gap…

High Energy Physics - Theory · Physics 2014-05-21 Jun-ichirou Koga , Kengo Maeda , Kentaro Tomoda