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Rings are a model system for studying phase coherence in one dimension. Superconducting rings have states with uniform phase windings that are integer multiples of 2$\pi$ called fluxoid states. When the energy difference between these…

Superconductivity · Physics 2012-07-06 Julie A. Bert , Nicholas C. Koshnick , Hendrik Bluhm , Kathryn A. Moler

We derive the Ginzburg-Landau-Wilson theory for the superconducting phase transition in two dimensions and in the magnetic field. Without disorder the theory describes a fluctuation induced first-order quantum phase transition into the…

Superconductivity · Physics 2009-11-07 W. C. Wu , Igor F. Herbut

Superconducting transitions are driven by thermal fluctuations close to the transition temperature, Tc. These fluctuations are averaged out in global measurements, leaving imprints on susceptibility and resistance measurements. Here, we use…

Superconductivity · Physics 2018-06-29 Shai Wissberg , Aviad Frydman , Beena Kalisky

We extend the thermodynamic approach for the description of the thermal Hall effect in the vicinity of a superconducting phase transition, in the fluctuation dominated regime. We show that the Hall heat conductivity is proportional to the…

Superconductivity · Physics 2020-11-25 A. V. Kavokin , Y. M. Galperin , A. A. Varlamov

We study the thermodynamics of ultrasmall metallic grains with the mean level spacing comparable or larger than the pairing correlation energy in the whole range of temperatures. A complete picture of the thermodynamics in such systems is…

Superconductivity · Physics 2007-05-23 G. Falci , A. Fubini , A. Mastellone

Thermal fluctuations of the color superconducting order parameter in dense quark matter are investigated in terms of the phenomenological Ginzburg - Landau approach. Our estimates show that fluctuations of the di-quark gap may strongly…

Nuclear Theory · Physics 2007-05-23 D. N. Voskresensky

We examine the effect of classical magnetic fluctuations on the phase diagram of paramagneticallylimited two-dimensional superconductors under a Zeeman magnetic field. We derive the free energy expansion in powers of the superconducting…

Superconductivity · Physics 2015-03-13 Robert Beaird , Anton B. Vorontsov , Ilya Vekhter

We extend recent low temperature analyses of competing orders in the cuprate superconductors to the pseudogap regime where all orders are fluctuating. A universal continuum limit of a classical Ginzburg-Landau functional is used to…

Strongly Correlated Electrons · Physics 2007-05-23 Subir Sachdev , Eugene Demler

We review and discuss some recent developments on the unconventional interaction between superconducting systems and the local gravitational field. While it is known that gravitational perturbations (such as gravitational waves) can affect…

General Relativity and Quantum Cosmology · Physics 2022-03-18 Antonio Gallerati , Giovanni Ummarino

We study the effects of quantum fluctuations on the transport properties of multiband superconductors near a pair-breaking quantum critical point. For this purpose, we consider a minimal model of the quantum phase transition in a system…

Superconductivity · Physics 2023-11-28 Maxim Dzero , Maxim Khodas , Alex Levchenko

The magnetoresistance of a granular superconductor in a strong magnetic field is considered. It is assumed that this field destroys the superconducting gap in each grain, such that all interesting effects considered in the paper are due to…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 I. S. Beloborodov , K. B. Efetov , A. I. Larkin

We study the effect of superconducting fluctuations on the upper critical field of a disordered superconducting film at low temperatures. The first order fluctuation correction is found explicitly. In the framework of the perturbative…

Superconductivity · Physics 2009-11-10 Victor Galitski , S. Das Sarma

Langevin forces are investigated in the framework of the phenomenological Ginzburg-Landau (GL) theory. These stochastic forces introducted in the time-dependent Ginzburg-Landau (TDGL) equation describing the superconductor transport…

Superconductivity · Physics 2009-10-20 Iogann Tolbatov

In this paper we studied the weakly nonlinear stage of stationary convective instability in a nonuniformly rotating layer of an electrically conductive fluid in an axial uniform magnetic field under the influence of: a) temperature…

Plasma Physics · Physics 2019-11-14 M. I. Kopp , A. V. Tur , V. V. Yanovsky

In a two-band superconductor, two qualitatively different fluctuation modes related to the gap modules contribute to free energy and heat capacity, in addition to the phase fluctuations. The first mode has divergent temperature behaviour…

Superconductivity · Physics 2015-06-19 Artjom Vargunin , Teet Ord

We discuss fluctuations near the second order phase transition where the free energy has an additional non-Hermitian term. The spectrum of the fluctuations changes when the odd-parity potential amplitude exceeds the critical value…

Superconductivity · Physics 2012-10-11 N. M. Chtchelkatchev , A. A. Golubov , T. I. Baturina , V. M. Vinokur

We construct a family of minimal phenomenological models for holographic superconductors in d=4+1 AdS spacetime and study the effect of scalar and gauge field fluctuations. By making a Ginzburg-Landau interpretation of the dual field…

High Energy Physics - Theory · Physics 2015-04-03 Aldo Dector

We study the flux-flow Hall effect and thermomagnetic transport near the upper critical field \hctwo\ in extreme type-II superconductors starting from a suitable generalization of the time dependent Ginzburg-Landau equations. We explicitly…

Condensed Matter · Physics 2009-10-22 Robert J. Troy , Alan T. Dorsey

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

We study the role of charge density-wave fluctuations on the temperature dependence of Seebeck coefficient in quasi-one dimensional conductors with a Peierls instability. The description of low-dimensional incommensurate charge density-wave…

Strongly Correlated Electrons · Physics 2020-03-25 M. Mbodji , C. Bourbonnais