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The nature of normal state charge-carriers' dynamics and the transition in conduction and gap dimensionalities between 2D and 3D for YBa_2 Cu_3 O_{7-delta} and Bi_2 Sr_2 Ca_{1-x} Y_x Cu_2 O_8 high-T_c superconductors were described by…

Superconductivity · Physics 2009-11-07 Andrew Das Arulsamy

It is discussed some problems of normal states of high temperature superconductors (HTS's) with d-wave pairing and next suppositions: 1) at pseudogap temperature it occurs the dimensional crossover from 3D incoherent normal state to quasi…

Superconductivity · Physics 2007-05-23 G. Sergeeva

The transition line of superconducting arrays of holes exhibits a rich field structure due to the interference of superconducting states nucleated at the holes edges. We studied by means of resistance measurements their effect on the T*c(H)…

Superconductivity · Physics 2007-05-23 C. C. Abilio , L. Amico , Rosario Fazio , B. Pannetier

We use a variational approach to gain insight into the strongly correlated d-wave superconducting state of the high Tc cuprates at T=0. We show that strong correlations lead to qualitatively different trends in pairing and phase coherence:…

Superconductivity · Physics 2009-11-10 Arun Paramekanti , Mohit Randeria , Nandini Trivedi

We study the (3+1) dimensional p-wave holographic superconductors with Weyl corrections both numerically and analytically. We describe numerically the behavior of critical temperature $T_{c}$ with respect to charge density $\rho$ in a…

High Energy Physics - Theory · Physics 2012-06-12 D. Momeni , N. Majd , R. Myrzakulov

We study numerically an $s$-wave holographic superconductor from an anti-de Sitter-Einstein-Born-Infeld black hole with backreaction in the context of the anti-de Sitter/conformal field theory (AdS/CFT) correspondence. By introducing a…

High Energy Physics - Theory · Physics 2025-06-17 Uriel Elinos Calderón , Edgar Guzmán-González , Marco Maceda

We study in detail the phase structure of a holographic p-wave superconductor model in a five dimensional Einstein-Maxwell-complex vector field theory with a negative cosmological constant. To construct complete phase diagrams of the model,…

General Relativity and Quantum Cosmology · Physics 2014-04-11 Rong-Gen Cai , Li Li , Li-Fang Li , Run-Qiu Yang

We show that a simple gravitational theory can provide a holographically dual description of a superconductor. There is a critical temperature, below which a charged condensate forms via a second order phase transition and the (DC)…

High Energy Physics - Theory · Physics 2008-11-26 Sean A. Hartnoll , Christopher P. Herzog , Gary T. Horowitz

Effects of inhomogeneous doping on the high-$T_c$ cuprate superconductors are studied within the framework of the t-J model. Especially, the boundary between two non-superconducting regions with doping rates much higher and lower than the…

Strongly Correlated Electrons · Physics 2007-05-23 M. Hayashi , H. Ebisawa

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 study the holographically dual description of superconductor in (2+1)-dimensions in the presence of inhomogeneous magnetic field and observe that there exists type I and type II superconductor. A new feature of type changing is observed…

High Energy Physics - Theory · Physics 2008-05-13 Wen-Yu Wen

We present a solution of Einstein equations describing a $d$-dimensional planar quintessence AdS black hole which depends on the state parameter $w_q$ of quintessence. We investigate holographic superconductors in this background and probe…

General Relativity and Quantum Cosmology · Physics 2015-06-05 Songbai Chen , Qiyuan Pan , Jiliang Jing

We study holographic superconductors in the Schwarzschild-AdS black hole with a global monopole through a charged complex scalar field. We calculate the condensates of the charged operators in the dual conformal field theories (CFTs) and…

General Relativity and Quantum Cosmology · Physics 2014-11-20 Songbai Chen , Liancheng Wang , Chikun Ding , Jiliang Jing

The problem of nonlinear transport in a two dimensional superconductor with an applied oscillating electric field is solved by the holographic method. The complex conductivity can be computed from the dynamics of the current for both near-…

High Energy Physics - Theory · Physics 2016-06-22 Hua Bi Zeng , Yu Tian , Zhe Yong Fan , Chiang-Mei Chen

We study direct currents in a simple holographic realization of a superconducting film. We investigate how the presence of a DC current affects the superconducting phase transition, which becomes first order for any non-vanishing value of…

High Energy Physics - Theory · Physics 2010-12-17 Daniel Areán , Matteo Bertolini , Jarah Evslin , Tomás Procházka

High-order topological phases host robust boundary states at the boundary of the boundary, which can be interpreted from their boundary topology. In this work, considering the interplay between superconductors and magnetic fields to gap the…

Superconductivity · Physics 2021-09-29 Xun-Jiang Luo , Xiao-Hong Pan , Xin Liu

Two-band superconductors exhibit a distinct phase characterized by two correlation lengths, one smaller and the other larger than the magnetic field penetration length. This regime was coined type-1.5 superconductivity, with several…

Superconductivity · Physics 2024-08-21 Igor Timoshuk , Egor Babaev

Superconducting high-entropy alloys (HEAs) are a newly burgeoning field of unconventional superconductors and raise intriguing questions about the presence of superconductivity in highly disordered systems, which lack regular phonon modes.…

Superconductivity · Physics 2023-05-16 K. Motla , Arushi , S. Jangid , P. Meena , R. K. Kushwaha , R. P. Singh

It is known that a classical SU(2) Einstein-Yang-Mills theory in 3+1 dimensional anti-de Sitter spacetime can provide a holographic dual to a 2+1 dimensional time reversal symmetry breaking superconductor with a pseudogap. We study the…

High Energy Physics - Theory · Physics 2009-09-02 Huabi Zeng , Zheyong Fan , Zhongzhou Ren

End-to-end correlated bound states are investigated in superconductor-semiconductor hybrid nanowires at zero magnetic field. Peaks in subgap conductance are independently identified from each wire end, and a cross-correlation function is…

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