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We study entanglement spectra of gapped states on the surfaces of symmetry-protected topological phases. These surface states carry anomalies that do not allow them to be terminated by a trivial state. Their entanglement spectra are…

介观与纳米尺度物理 · 物理学 2022-10-04 Arjun Dey , David F. Mross

In this paper, we investigate the generation of gravitational waves (GWs) from a first-order QCD confinement-deconfinement phase transition under external magnetic field from holography. We analyze the GWs spectra across both hard wall and…

高能物理 - 唯象学 · 物理学 2026-03-24 Man-Man Sun , Man-Li Tian , Zhou-Run Zhu

In this work, Laser-induced magnetization dynamics of nanostructured nickel films is investigated. The influence of the nanosize is discussed considering the time-scale of hundreds of femtoseconds as well as the GHz regime. While no…

Reduced quasilinear (QL) and nonlinear (gradient-driven) models with scale separations, commonly used to interpret experiments and to forecast turbulent transport levels in magnetised plasmas are tested against nonlinear models without…

We characterise the dynamics of electrons in twisted bilayer graphene by analysing the time-evolution of electron waves in the atomic lattice. We perform simulations based on a kernel polynomial technique using Chebyshev polynomial; this…

介观与纳米尺度物理 · 物理学 2019-04-24 H. Nam Do , H. Anh Le , D. Bercioux

We study the effects of thickness on the ground states of two-dimensional quantum dots in high magnetic fields. To be specific, we assume the thickness to be small so that only the lowest state in the corresponding direction is occupied,…

介观与纳米尺度物理 · 物理学 2009-02-03 E. Tölö , A. Harju

Wavelet analysis and compression tools are reviewed and different applications to study MHD and plasma turbulence are presented. We introduce the continuous and the orthogonal wavelet transform and detail several statistical diagnostics…

等离子体物理 · 物理学 2015-10-21 Marie Farge , Kai Schneider

We observe magnetization dynamics induced by spin momentum transfer in the noise spectra of current perpendicular to the plane giant magnetoresistance spin valves. The dynamics are observable only for those combinations of current direction…

材料科学 · 物理学 2009-11-10 M. Covington , M. AlHajDarwish , Y. Ding , N. J. Gokemeijer , M. A. Seigler

The small-scale turbulent dynamo is a key mechanism for amplifying galactic magnetic fields, yet the resulting field morphology remains poorly understood. Using 3D driven turbulence simulations across a range of compressibilities,…

星系天体物理 · 物理学 2026-03-25 Sasi M. Behara , Amit Seta

The ground state of colloidal magnetic particles in a modulated channel are investigated as function of the tilt angle of an applied magnetic field. The particles are confined by a parabolic potential in the transversal direction while in…

软凝聚态物质 · 物理学 2014-04-02 J. E. Galván-Moya , D. Lucena , W. P. Ferreira , F. M. Peeters

The background magnetic geometry at the edge of a tokamak plasma has to be designed in order to mitigate the particle and energy looses essentially due to turbulent transport. The Divertor-Tokamak-Test (DTT) facility under construction at…

等离子体物理 · 物理学 2024-08-01 F. Cianfrani , G. Montani

We derive the local density of states from itinerant and boundary states around transport barriers and edges in graphene and show that the itinerant states lead to mesoscale undulations that could be used to probe their scattering…

介观与纳米尺度物理 · 物理学 2015-04-17 Daniel Gunlycke , Carter T. White

Using spatio-temporal spectra we show direct evidence of excitation of magnetosonic and Alfv\'en waves in three-dimensional compressible magnetohydrodynamic turbulence at small Mach numbers. For the plasma pressure dominated regime, or high…

Aims. The wavelet transform has been used as a powerful tool for treating several problems in astrophysics. In this work, we show that the time-frequency analysis of stellar light curves using the wavelet transform is a practical tool for…

天体物理仪器与方法 · 物理学 2014-09-05 J. P. Bravo , S. Roque , R. Estrela , I. C. Leão , J. R. De Medeiros

By event-driven molecular dynamics simulations we investigate magneto-transport in a two-dimensional model with randomly distributed scatterers close to the field-induced localization transition. This transition is generated by percolating…

介观与纳米尺度物理 · 物理学 2015-12-14 Walter Schirmacher , Benedikt Fuchs , Felix Höfling , Thomas Franosch

Fluctuation dynamo action has been obtained for a flow previously used to model fluid turbulence, where the sensitivity of the magnetic field parameters to the kinetic energy spectrum can be explored. We apply quantitative morphology…

天体物理学 · 物理学 2008-11-26 S. Louise Wilkin , Carlo F. Barenghi , Anvar Shukurov

It is shown that surface waves with twelve different velocities in the cases of different magneto-electrical boundary conditions can be guided by the interface of two magneto-electro-elastic half-spaces. The plane boundary of one of the…

综合物理 · 物理学 2007-05-23 Arman Melkumyan

In this paper, we numerically study the wave turbulence of surface gravity waves in the framework of Euler equations of the free surface. The purpose is to understand the variation of the scaling of the spectra with wavenumber $k$ and…

流体动力学 · 物理学 2023-06-22 Zhou Zhang , Yulin Pan

A theory of the magnetic field driven (semi-)metal-insulator phase transition is developed for planar systems with a low density of carriers and a linear (i.e., relativistic like) dispersion relation for low energy quasiparticles. The…

凝聚态物理 · 物理学 2009-11-07 E. V. Gorbar , V. P. Gusynin , V. A. Miransky , I. A. Shovkovy

Twist between neighboring layers and variation of interlayer distance are two extra ways to control the physical properties of stacked two-dimensional van der Waals materials without alteration of chemical compositions or application of…

材料科学 · 物理学 2024-04-19 Li-Ya Qiao , Xiu-Cai Jiang , Ze Ruan , Yu-Zhong Zhang