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Carbon, the fourth most abundant element in the Universe forms a metallic fluid with transient covalent bonds on melting. Its liquid-liquid phase transitions, intensely sought using simulations had been elusive. Here we use density…

统计力学 · 物理学 2022-03-02 M. W. C. Dharma-wardana , Dennis D. Klug

We present simulations of the dynamic critical state for a 2D superconductor with strong pinning centers, corresponding to a matching field twice the applied magnetic field. The sharp crossover between the plastic regime, at low current…

超导电性 · 物理学 2009-10-31 D. Monier , L. Fruchter

The combination of strong correlation and emergent lattice can be achieved when quantum gases are confined in a superradiant Fabry-Perot cavity. In addition to the discoveries of exotic phases, such as density wave ordered Mott insulator…

量子气体 · 物理学 2017-11-15 Yu Chen

This study explores transitions between states with different winding number in two-band superconducting rings. From the time-dependent Ginzburg-Landau (TDGL) equations for two-component superconductors, we apply linear instability theory…

超导电性 · 物理学 2024-08-27 Leonardo R. Cadorim , Edson Sardella , Daniel Domínguez , Jorge Berger

We study an exactly-solvable model which shows a zero-temperature transition from a non-Fermi liquid to a Fermi liquid as a function of particle density. The quantum critical point separating these two states is not associated with the…

强关联电子 · 物理学 2016-08-31 P. C. Howell , A. J. Schofield

Hydrodynamic fluctuations have been studied in a wide variety of physical, chemical, and biological phenomena in the past decade. In high energy heavy ion collisions, there will be intrinsic fluctuations even if the initial conditions are…

核理论 · 物理学 2013-06-18 Joseph I. Kapusta , Juan M. Torres-Rincon

Planets and stars are able to generate coherent large-scale magnetic fields by helical convective motions in their interiors. This process, known as hydromagnetic dynamo, involves nonlinear interaction between the flow and magnetic field.…

流体动力学 · 物理学 2025-05-13 Anna Guseva , Ludovic Petitdemange , Steven M. Tobias

Transition to turbulence in straight pipes occurs in spite of the linear stability of the laminar Hagen--Poiseuille flow if the amplitude of flow perturbations as well as the Reynolds number exceed a minimum threshold (subcritical…

流体动力学 · 物理学 2015-08-27 J. Kühnen , P. Braunshier , M. Schwegel , H. Kuhlmann , B. Hof

Weakly coupled superconducting layers are described by the three-dimensional XY model with strong coupling in two directions and weak coupling in the third direction. For the usual Josephson-type interplane coupling the coherence between…

凝聚态物理 · 物理学 2007-05-23 M. Dzierzawa , M. Zamora , D. Baeriswyl , X. Bagnoud

Phase diagrams play a primary role in the understanding of materials properties. For iron-based superconductors (Fe-SC), the correct definition of their phase diagrams is crucial because of the close interplay between their…

超导电性 · 物理学 2017-02-08 A. Martinelli , F. Bernardini , S. Massidda

High energy electron irradiation is an efficient way to create vacancy-interstitial Frenkel pairs in crystal lattice, thereby inducing controlled non-magnetic point - like scattering centers. In combination with London penetration depth and…

超导电性 · 物理学 2018-06-13 Kyuil Cho , M. Konczykowski , S. Teknowijoyo , M. A. Tanatar , R. Prozorov

We present a detailed description of a zero temperature phase transition between superconducting and diffusive metallic states in very thin wires due to a Cooper pair breaking mechanism. The dissipative critical theory contains current…

超导电性 · 物理学 2009-03-02 Adrian Del Maestro , Bernd Rosenow , Subir Sachdev

Specific heat curves for various pressures, in many correlated electron systems, have been seen to cross at a point. We analyze this behavior using the spin fluctuation theory. It is found that when the system is considered near a…

强关联电子 · 物理学 2007-05-23 Suresh G. Mishra , P. A. Sreeram

At a temperature of roughly 1\,K, \ce{Sr2RuO4} undergoes a transition from a normal Fermi liquid to a superconducting phase. Even while the former is relatively simple and well understood, the superconducting state is not even after 25…

强关联电子 · 物理学 2021-01-21 Swagata Acharya , Dimitar Pashov , Elena Chachkarova , Mark Van Schilfgaarde , Cédric Weber

Whether a quantum critical point (QCP) lies beneath the superconducting dome has been a long-standing issue that remains unresolved in many classes of unconventional superconductors, notably cuprates, heavy fermion compounds and most…

超导电性 · 物理学 2014-03-12 T. Shibauchi , A. Carrington , Y. Matsuda

The in-plane magnetoconductance of the strongly interacting two-dimensional electron system in a silicon MOSFET (metal-oxide-semiconductor-field-effect transistor) exhibits an unmistakeable kink at a well-defined electron density, $n_k$.…

强关联电子 · 物理学 2019-04-12 Shiqi Li , Qing Zhang , Pouyan Ghaemi , M. P. Sarachik

The existence of a phase transition between two distinct liquid phases in single-component network-forming liquids (e.g., water, silica, silicon) has elicited considerable scientific interest. The challenge, both for experiments and…

软凝聚态物质 · 物理学 2022-05-30 Yagyik Goswami , Srikanth Sastry

In a local Fermi liquid (LFL), we show that there is a line of weak first order phase transitions between the ferromagnetic and paramagnetic phases due to purely quantum fluctuations. We predict that an instability towards superconductivity…

强关联电子 · 物理学 2009-11-10 Jason Jackiewicz , Kevin S. Bedell

Two-dimensional ferromagnetic electron gases subject to random scalar potentials and Rashba spin-orbit interactions exhibit a striking quantum criticality. As disorder strength $W$ increases, the systems undergo a transition from a normal…

介观与纳米尺度物理 · 物理学 2019-12-11 Weiwei Chen , C. Wang , Qinwei Shi , Qunxiang Li , X. R. Wang