Results 41 to 50 of about 31,594 (262)

Exponential Attractor for Coupled Ginzburg-Landau Equations Describing Bose-Einstein Condensates and Nonlinear Optical Waveguides and Cavities

Abstract and Applied Analysis, 2013
The existence of the exponential attractors for coupled Ginzburg-Landau equations describing Bose-Einstein condensates and nonlinear optical waveguides and cavities with periodic initial boundary is obtained by showing Lipschitz continuity and the ...
Gui Mu, Jun Liu
doaj   +1 more source

Phase synchronization of coupled Ginzburg-Landau equations

Physical Review E, 2000
The occurrence of phase synchronization of a pair of unidirectionally coupled nonidentical Ginzburg-Landau equations is demonstrated and characterized using cyclic and extended phases. Furthermore, it is shown that weak coupling first leads to frequency synchronization and later to phase synchronization.
Junge, L., Parlitz, Ulrich
openaire   +3 more sources

Regularity and Qualitative Study of Parabolic Physical Ginzburg–Landau Equations in Variable Exponent Herz Spaces via Fractional Bessel–Riesz Operators

Fractal and Fractional
In this article, we investigate the regularization and qualitative properties of parabolic Ginzburg–Landau equations in variable exponent Herz spaces. These spaces capture both local and global behavior, providing a natural framework for our analysis. We
Waqar Afzal, Mesfer H. Alqahtani, Mujahid Abbas, Daniel Breaz   +3 more
doaj   +1 more source

Ginzburg-Landau-type theory of non-polarized spin superconductivity

, 2017
Since the concept of spin superconductor was proposed, all the related studies concentrate on spin-polarized case. Here, we generalize the study to spin-non-polarized case.
Bao, Zhi-qiang, Guo, Ai-Min, Lv, Peng, Sun, Qing-Feng, Xie, X. C.   +4 more
core   +2 more sources

Asymmetry of the Ferroelectric Phase Transition in BaTiO3

Advanced Materials, EarlyView.
Phase transitions are typically assumed to behave identically in forward and reverse. This work shows that in the ferroelectric material barium titanate this is not true: heating drives an abrupt, first‐order jump, while cooling gives a smooth, continuous change.
Asaf Hershkovitz, Elangovan Hemaprabha, Rajesh Mandal, Pravin Kavle, Jamil Tanus, Maya Barzilay, Ching‐Che Lin, David Spirito, Semën Gorfman, Bo Wang, Ignacio J. Villar‐García, Neus Domingo, Long‐Qing Chen, Lane W. Martin, Yachin Ivry   +14 more
wiley   +1 more source

Quantization effects for multi-component Ginzburg-Landau vortices

Advanced Nonlinear Studies
In this paper, we are concerned with n-component Ginzburg-Landau equations on R2 ${\mathbb{R}}^{2}$ . By introducing a diffusion constant for each component, we discuss that the n-component equations are different from n-copies of the single Ginzburg ...
Hadiji Rejeb, Han Jongmin, Sohn Juhee
doaj   +1 more source

Defect Chaos of Oscillating Hexagons in Rotating Convection

, 1999
Using coupled Ginzburg-Landau equations, the dynamics of hexagonal patterns with broken chiral symmetry are investigated, as they appear in rotating non-Boussinesq or surface-tension-driven convection. We find that close to the secondary Hopf bifurcation
A. M. Soward, A. Torcini, A. Torcini, B. Echebarria, B. Echebarria, Blas Echebarria, F. Busse, F. Busse, G. Ahlers, G. Grinstein, G. Huber, G. Küppers, H. Chaté, Hermann Riecke, J. Burguete, J. Lauzeral, J. Millán-Rodríguez, J. Swift, M. C. Cross, M. Dennin, M. Treiber, P. Coullet, P. Manneville, R. B. Hoyle, R. Montagne, S. Popp, S. W. Morris, Y. C. Hu   +27 more
core   +1 more source

Non Scale-Invariant Topological Landau-Ginzburg Models [PDF]

, 1995
The Landau-Ginzburg formulation of two-dimensional topological sigma models on the target space with positive first Chern class is considered. The effective Landau-Ginzburg superpotential takes the form of logarithmic type which is characteristic of ...
Aoyama, Bott, Cecotti, Cecotti, D'Adda, Dijkgraaf, Dubrovin, Eguchi, Eguchi, Gepner, Griffth, Intriligator, Intriligator, Kanno, Lerche, Martinec, Masayuki Noguchi, Sung-Kil Yang, Taylor, Vafa, Vafa, Vafa, Veneziano, Witten, Witten, Witten, Witten, Witten, Zumino   +28 more
core   +2 more sources

Triggered Ferroelectricity in HfO2 From Hybrid Phonons and Higher‐Order Dynamical Charges

Advanced Materials, EarlyView.
We combine first‐principles calculations, LGD theory and group theory to demonstrate the mechanism of hybrid‐triggered ferroelectricity in HfO2${\rm HfO}_2$, enabled by trilinear and quadlinear couplings between stable polar and nonpolar modes. HfO2${\rm HfO}_2$ hosts unconventional interplay between structure modes where substantial contribution to ...
Seongjoo Jung, Turan Birol
wiley   +1 more source

Instabilities in a Non-Uniformly Rotating Medium with Stratification of the Temperature in an External Uniform Magnetic Field

East European Journal of Physics, 2019
In this paper the stability of the non-uniformly rotating cylindrical plasma in the axial uniform magnetic field with the vertical temperature gradient is investigated.
Michael Kopp, Anatoly Tur, Volodymyr Yanovsky   +2 more
doaj   +1 more source