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The puzzling situation where some thermodynamic quantities require a single-gap description, while others need a more complex gap scenario, is discussed. Our approach reveals that in some cases, the conclusions based on measurements of only…

Superconductivity · Physics 2020-08-05 Rustem Khasanov , Ritu Gupta , Debarchan Das , Andreas Leithe-Jasper , Eteri Svanidze

In this paper, we investigate the mixed-state entanglement in a model of p-wave superconductivity phase transition using holographic methods. We calculate several entanglement measures, including holographic entanglement entropy (HEE),…

High Energy Physics - Theory · Physics 2023-05-10 Zhe Yang , Fang-Jing Cheng , Chao Niu , Cheng-Yong Zhang , Peng Liu

We investigate the emergence of a time-crystalline phase in a single-band holographic superconductor, extending the AdS/CFT framework. By incorporating a nonlinear gauge-scalar coupling and external driving, we derive coupled equations of…

High Energy Physics - Theory · Physics 2026-04-07 Chi-Hsien Tai , Wen-Yu Wen

Temperature dependences of thermoelectric power S(T) at $T>T_c$ of the Hg-based high temperature superconductors Hg$_{1-x}$R$_x$Ba$_2$Ca$_2$Cu$_3$O$_{8+\delta}$ (R=Re, Pb) have been analyzed with accounting for strong scattering of charge…

Superconductivity · Physics 2011-07-01 O. Babych , I. Gabriel , R. Lutsiv , M. Matviyiv , M. Vasyuk

We construct an analytic solution for a one-parameter family of holographic superconductors in asymptotically Lifshitz spacetimes. We utilize this solution to explore various properties of the systems such as (1) the superfluid phase…

High Energy Physics - Theory · Physics 2018-03-28 Makoto Natsuume , Takashi Okamura

Using the holographic model for spontaneous symmetry breaking, we study some properties of the dual superfluid such as the thermodynamic exponents, Joule-Thomson coefficient, compressibility etc. Our focus is on how these properties vary…

High Energy Physics - Theory · Physics 2018-02-15 Roopa D'Almeida , K. P. Yogendran

We employ the numerical and analytical methods to study the effects of the hyperscaling violation on the ground and excited states of holographic superconductors for $d=2,~z=2$. For both the holographic s-wave and p-wave models with the…

High Energy Physics - Theory · Physics 2022-02-23 Shuhang Zhang , Zixu Zhao , Qiyuan Pan , Jiliang Jing

Precise measurements of the thermodynamic critical field ($B_{\rm c}$) in type-I noncentrosymmetric superconductor BeAu were performed by means of the muon-spin rotation/relaxation technique. The temperature evolution of $B_{\rm c}$ can not…

Superconductivity · Physics 2020-05-13 Rustem Khasanov , Ritu Gupta , Debarchan Das , Alfred Amon , Andreas Leithe-Jasper , Eteri Svanidze

Thermodynamics of strongly interacting matter near critical end point are investigated in a holographic QCD model, which could describe the QCD phase diagram in $T-\mu$ plane qualitatively. Critical exponents along different axis…

High Energy Physics - Phenomenology · Physics 2019-03-27 Xun Chen , Danning Li , Mei Huang

By investigating the bulk superconducting state via dc magnetization measurements, we have discovered a common resurgence of the superconductive transition temperatures (Tcs) of the monolayer Bi2Sr2CuO6+{\delta} (Bi2201) and bilayer…

Superconductivity · Physics 2019-01-30 Liangzi Deng , Yongping Zheng , Zheng Wu , Shuyuan Huyan , Hung-Cheng Wu , Yifan Nie , Kyeongjae Cho , Ching-Wu Chu

In the fully back reacted geometry we develop a supercurrent solution which corresponds to a deformation of superconducting black holes by the spatial component of gauge fields with a non- trivial radial dependence. We investigate the…

High Energy Physics - Theory · Physics 2012-04-16 Yan Peng , Xiao-Mei Kuang , Yunqi Liu , Bin Wang

We investigate the behavior of the superconducting transition temperature within a previously developed BCS-Bose Einstein crossover picture. This picture, based on a decoupling scheme of Kadanoff and Martin, further extended by Patton, can…

Superconductivity · Physics 2007-05-23 Qijin Chen , Ioan Kosztin , Boldizsar Janko , K. Levin

Although there is no complete theory of high temperature superconductivity, the importance of CuO$_2$ planes in cuprate superconductors is confirmed from both theory and experiments. Strong Coulomb repulsion between electrons on the CuO$_2$…

We employ the matching method to analytically investigate the holographic superconductors with Lifshitz scaling in an external magnetic field. We discuss systematically the restricted conditions for the matching method and find that this…

High Energy Physics - Theory · Physics 2014-07-22 Zixu Zhao , Qiyuan Pan , Jiliang Jing

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

In this work, we have analytically analyzed the insulator/superconductor phase transition in the presence of a 5-dimensional $AdS$ soliton background using matching method and thermodynamic geometry approach. We have first employed the…

High Energy Physics - Theory · Physics 2022-02-02 Diganta Parai , Debabrata Ghorai , Sunandan Gangopadhyay

We report the enhanced superconducting properties of double-chain based superconductor Pr$_{2}$Ba$_{4}$Cu$_{7}$O$_{15-\delta}$ synthesized by the citrate pyrolysis technique. %In spite of the polycrystalline bulk samples, we obtained the…

Magnetic properties of layered high temperature superconductors with a weak interlayer coupling in the region of the critical fluctuations are investigated in the framework of the Ginzburg--Landau approach. The sample magnetization is…

Superconductivity · Physics 2007-05-23 Gregory M. Braverman

We investigate holographic superconductors in asympototically geometries with hyperscaling violation. The mass of the scalar field decouples from the UV dimension of the dual scalar operator and can be chosen as negative as we want, without…

High Energy Physics - Theory · Physics 2015-06-15 ZhongYing Fan

We apply a method recently derived based on the extended Hubbard Hamiltonian and the BCS approach to obtain the superconducting critical temperature dependence with carrier density for the HgBaCuO compounds. We show that this procedure can…

Superconductivity · Physics 2015-06-25 E. V. L. de Mello , C. Acha
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