Results 41 to 50 of about 6,538,230 (211)

Electrodynamics of s-Wave Superconductors Using First-Order Formalism

open access: yesCondensed Matter, 2017
In this paper we give a derivation of a system of equations which generalize the London brothers and Ginzburg–Landau systems of equations, to describe the electrodynamics of s-wave superconductors.
Naoum Karchev
doaj   +1 more source

Explaining the cuspy dark matter halos by the Landau–Ginzburg theory

open access: yesOpen Astronomy, 2022
The equilibrium cold dark matter halos show the almost universal inner r−1{r}^{-1} cusps, whose physical origin is still not completely clear. This work tries to further clarify this problem by the Landau–Ginzburg (LG) theory, which is often used to ...
Kang Dong-Biao, Zhang Tong-Jie
doaj   +1 more source

Excitations of static isolated fermions in the Higgs phase of gauge Higgs theory

open access: yesSciPost Physics Proceedings, 2022
A spectrum of localized excitations of isolated static fermions has been discovered in several different gauge Higgs theories. In lattice numerical simulations, we show that the charged elementary particles can have the spectrum of excitations in the ...
Kazue Matsuyama, Jeff Greensite
doaj   +1 more source

Dynamic Phase Transitions in PVT Systems [PDF]

open access: yes, 2007
The main objective of this article are two-fold. First, we introduce some general principles on phase transition dynamics, including a new dynamic transition classification scheme, and a Ginzburg-Landau theory for modeling equilibrium phase transitions ...
Ma, Tian, Wang, Shouhong
core   +1 more source

Ginzburg-Landau theory of vortices in a multigap superconductor [PDF]

open access: yes, 2003
The Ginzburg-Landau functional for a two-gap superconductor is derived within the weak-coupling BCS model. The interaction between the two condensates is described by a unique Josephson-type mixing term. The two-gap Ginzburg-Landau theory is then applied
M. Zhitomirsky, V. Dao
semanticscholar   +1 more source

Machine-Learning-Guided Design of Incommensurate Antiferroelectrics via Field-Driven Phase Engineering. [PDF]

open access: yesAdv Sci (Weinh)
The key to enhancing the energy storage performance of antiferroelectrics lies in regulating the phase transition and reverse phase transition. A phase‐field‐machine learning framework is employed to predict the energy storage performance of Pb‐based incommensurate antiferroelectrics with multi‐scale regulation strategy, thereby revealing the dynamic ...
Xu K   +9 more
europepmc   +2 more sources

New 2d N $$ \mathcal{N} $$ = (0, 2) dualities from four dimensions

open access: yesJournal of High Energy Physics, 2020
We propose some new infra-red dualities for 2d N $$ \mathcal{N} $$ = (0, 2) theories. The first one relates a USp(2N) gauge theory with one antisymmetric chiral, four fundamental chirals and N Fermi singlets to a Landau-Ginzburg model of N Fermi and 6N ...
Matteo Sacchi
doaj   +1 more source

Boundary Effect and Critical Temperature of Two-Band Superconducting FeSe Films

open access: yesCrystals, 2022
Based on two-band Bogoliubov–de Gennes theory, we study the boundary effect of an interface between a two-gap superconductor FeSe and insulator (or vacuum).
Chenxiao Ye, Jiantao Che, Hai Huang
doaj   +1 more source

The influence of magnetic steps on bulk superconductivity

open access: yes, 2015
We study the distribution of bulk superconductivity in presence of an applied magnetic field, supposed to be a step function, modeled by the Ginzburg-Landau theory.
Assaad, Wafaa, Kachmar, Ayman
core   +1 more source

Ginzburg-Landau theory of vortices in d-wave superconductors. [PDF]

open access: yesPhysical Review Letters, 1995
Ginzburg-Landau theory is used to study the properties of single vortices and of the Abrikosov vortex lattice in a $d_{x^2-y^2}$ superconductor. For a single vortex, the $s$-wave order parameter has the expected four-lobe structure in a ring around the ...
A. Berlinsky   +4 more
semanticscholar   +1 more source

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