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We study nonequilibrium steady states in a holographic superconductor under time periodic driving by an external rotating electric field. We obtain the dynamical phase diagram. Superconducting phase transition is of first or second order…

High Energy Physics - Theory · Physics 2018-12-19 Takaaki Ishii , Keiju Murata

We construct the electron star solution to the model that was recently proposed by Kiritsis and Li in order to describe a holographic superconductor at finite doping. We do so by finding a map between the doped model and the standard…

High Energy Physics - Theory · Physics 2019-11-22 Laura Cruciani , Nicolas Grandi

We investigate field theory models of holographic superconductors in which the condensation of the order parameter is induced by a Robin boundary condition. Assuming large-$c$ factorization, we study the phase diagram of a two-dimensional…

High Energy Physics - Theory · Physics 2026-05-19 Salvatore Santoro , Roberto Auzzi , Stefano Bolognesi

A model for high-temperature superconductors incorporating antiferromagnetism, d-wave superconductivity, and no double lattice-site occupancy can give energy surfaces exquisitely balanced between antiferromagnetic and superconducting order…

Strongly Correlated Electrons · Physics 2008-11-03 Mike Guidry , Yang Sun , Cheng-Li Wu

We study a general class of holographic superconductor models via the St\"{u}ckelberg mechanism in the non-minimal derivative coupling theory in which the charged scalar field is kinetically coupling to Einstein's tensor. We explore the…

General Relativity and Quantum Cosmology · Physics 2015-05-20 Songbai Chen , Qiyuan Pan , Jiliang Jing

I briefly review several key issues in understanding the cuprate superconductors from the point of view of doped-Mott-insulator. Then I present an effective low-energy theory and show that the phase diagram of such a model includes an…

Strongly Correlated Electrons · Physics 2017-08-23 Zheng-Yu Weng

We study general models for holographic superconductors in Einstein-Gauss-Bonnet gravity. We find that different values of Gauss-Bonnet correction term and model parameters can determine the order of phase transitions and critical exponents…

High Energy Physics - Theory · Physics 2015-03-17 Qiyuan Pan , Bin Wang

Phase transformations and crystallographic defects are two essential tools to drive innovations in materials. Bulk materials design via tuning chemical compositions has been systematized using phase diagrams. We show here that the same…

We use a symmetry-constrained variational procedure to construct a generalization of BCS to include Cooper pairs with non-zero momentum and angular momentum. The resulting gap equations are solved at zero and finite temperature, and the…

Superconductivity · Physics 2008-11-26 Yang Sun , Mike Guidry , Cheng-Li Wu

We construct a $6$ derivative holographic superconductor model in the $4$-dimensional bulk spacetimes, in which the normal state describes a quantum critical (QC) phase. The phase diagram $(\gamma_1,\hat{T}_c)$ and the condensation as the…

High Energy Physics - Theory · Physics 2017-10-24 Jian-Pin Wu , Peng Liu

We study a holographic model realizing an "antiferromagnetic" phase in which a global SU(2) symmetry representing spin is broken down to a U(1) by the presence of a finite electric charge density. This involves the condensation of a neutral…

High Energy Physics - Theory · Physics 2014-11-20 Nabil Iqbal , Hong Liu , Márk Mezei , Qimiao Si

We study the phase diagram of a holographic model realizing a U(2) global symmetry on the boundary and show that at low temperature a phase with both scalar s and vector p condensates exists. This is the s+p-wave phase where the global U(2)…

High Energy Physics - Theory · Physics 2014-03-07 Irene Amado , Daniel Arean , Amadeo Jimenez-Alba , Luis Melgar , Ignacio Salazar Landea

It is beyond the present techniques based on perturbation theory to reveal the nature of phase transitions in strongly interacting field theories. Recently, the holographic approach has provided us with an effective dual description,…

High Energy Physics - Theory · Physics 2015-03-19 Ki-Seok Kim , Kyung Kiu Kim , Youngman Kim , Yumi Ko

The phase diagram of cuprate high-temperature superconductors is investigated on the basis of the three-band d-p model. We use the optimization variational Monte Carlo method, where improved many-body wave functions have been proposed to…

Strongly Correlated Electrons · Physics 2021-05-17 Takashi Yanagisawa , Mitake Miyazaki , Kunihiko Yamaji

As a first step towards our holographic investigation of the far-from-equilibrium physics of periodically driven systems at strong coupling, we explore the real time dynamics of holographic superconductor driven by a monochromatically…

High Energy Physics - Theory · Physics 2013-07-08 Wei-Jia Li , Yu Tian , Hongbao Zhang

We study holographic superconductor model with two scalar fields coupled to one single Maxwell field in the AdS soliton background away from the probe limit. We disclose properties of phase transitions mostly from the holographic…

High Energy Physics - Theory · Physics 2017-03-14 Yan Peng , Guohua Liu

A dome-shaped phase diagram of superconducting critical temperature upon doping is often considered as a hallmark of unconventional superconductors. This behavior, observed in two-dimensional electron gases in $\mathrm{SrTiO}_3$-based…

The superconducting properties of a recently proposed phenomenological model for a weakly doped antiferromagnet are analyzed, taking into account fluctuations of the phase of the order parameter. In this model, we assume that the doped…

Superconductivity · Physics 2009-11-11 V. M. Loktev , V. M. Turkowski

Phase diagrams of charged semi-hard-core bosons are studied in the mean field approximation. An increase in the parameter of local correlations is shown to lead to the transformation of the phase diagram of the system from the form…

Statistical Mechanics · Physics 2022-01-05 V. V. Konev , Yu. D. Panov

We determine the quantum phase diagram of the Hubbard chain with electron-hole symmetric correlated hopping at 1/2- and 1/4-filling using geometric concepts and continuum limit field theory. The long distance behavior of various correlation…

Condensed Matter · Physics 2007-05-23 A. A. Aligia , K. Hallberg , C. D. Batista , G. Ortiz