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Related papers: Marked magnetic action rigidity

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On a metric measure space $X$ that supports a regular, strongly local resistance form we consider a magnetic energy form that corresponds to the magnetic Laplacian for a particle confined to $X$. We provide sufficient conditions for…

Mathematical Physics · Physics 2016-09-01 Michael Hinz , Luke Rogers

We show that literature results claimed for the magnetic field dependence of the longitudinal conductivity in anomalous first-order hydrodynamics are frame dependent at this derivative order. In particular, we focus on $(3+1)$-dimensional…

High Energy Physics - Theory · Physics 2023-08-11 Andrea Amoretti , Daniel K. Brattan , Luca Martinoia , Ioannis Matthaiakakis

We study the motion of a charge on a conformally flat Riemannian torus in the presence of magnetic field. We prove that for any non-zero magnetic field there always exist orbits of this motion which have conjugate points. We conjecture that…

Dynamical Systems · Mathematics 2007-05-23 M. L. Bialy

Let $M$ be a closed surface and let $\{g_s \ | \ s \in (-\epsilon, \epsilon)\}$ be a smooth one-parameter family of Riemannian metrics on $M$. Also let $\{\kappa_s : M \rightarrow \mathbb{R} \ | \ s \in (-\epsilon, \epsilon)\}$ be a smooth…

Differential Geometry · Mathematics 2024-10-01 James Marshall Reber

In this paper, we consider a compact Riemannian manifold with boundary, endowed with a magnetic potential $\alpha$ and a potential $U$. For brevity, this type of systems are called $\MP$-systems. On simple $\MP$-systems, we consider both…

Differential Geometry · Mathematics 2013-07-30 Yernat M. Assylbekov , Hanming Zhou

Flat magnetic nano-elements are an essential component of current and future spintronic devices. By shaping an element it is possible to select and stabilize chosen metastable magnetic states, control its magnetization dynamics. Here, using…

Mesoscale and Nanoscale Physics · Physics 2015-08-24 Andrei B. Bogatyrev , Konstantin L. Metlov

We compare the marked length spectra of isometric actions of groups with non-positively curved features. Inspired by the recent works of Butt we study approximate versions of marked length spectrum rigidity. We show that for pairs of…

Geometric Topology · Mathematics 2024-10-04 Stephen Cantrell , Eduardo Reyes

In this paper, we prove a cocycle version of marked length spectrum rigidity. There are two consequences. The first is marked length pattern rigidity for arithmetic hyperbolic locally symmetric manifolds. The second is strengthen marked…

Dynamical Systems · Mathematics 2025-08-19 Yanlong Hao

Magnetic behavior of a spin-1 Heisenberg dimer is analysed in dependence on both uniaxial single-ion anisotropy and XXZ exchange anisotropy in a zero- as well as non-zero longitudinal magnetic field. A complete set of eigenfunctions and…

Materials Science · Physics 2007-05-23 J. Strecka , M. Jascur , M. Hagiwara , Y. Narumi , J. Kuchar , S. Kimura , K. Kindo

In this paper, we show that simple, thick negatively curved two-dimensional P-manifolds, a large class of surface amalgams, are marked length spectrum rigid. That is, if two piecewise negatively curved Riemannian metrics (satisfying certain…

Geometric Topology · Mathematics 2024-12-10 Yandi Wu

Using first-principles transport calculations, we predict that the anisotropic magnetoresistance (AMR) of single-crystal Co$_x$Fe$_{1-x}$ alloys is strongly dependent on the current orientation and alloy concentration. An intrinsic…

Materials Science · Physics 2020-08-28 F. L. Zeng , Z. Y. Ren , Y. Li , J. Y. Zeng , M. W. Jia , J. Miao , A. Hoffmann , W. Zhang , Y. Z. Wu , Z. Yuan

Based on a detailed theoretical examination of the lattice distortion in high-index epilayers in terms of continuum mechanics, expressions are deduced that allow the calculation and experimental determination of the strain tensor for…

Materials Science · Physics 2015-05-18 L. Dreher , D. Donhauser , J. Daeubler , M. Glunk , C. Rapp , W. Schoch , R. Sauer , W. Limmer

The lens data of a Riemannian manifold with boundary is the collection of lengths of geodesics with endpoints on the boundary together with their incoming and outgoing vectors. We show that negatively-curved Riemannian manifolds with…

Differential Geometry · Mathematics 2023-07-24 Mihajlo Cekić , Colin Guillarmou , Thibault Lefeuvre

We have discovered a new phenomenon that inductance oscillates as a function of the angle between an in-plane magnetic field and an electric current direction in permalloy films, which we have named "the anisotropic magneto-inductance (AML)…

Mesoscale and Nanoscale Physics · Physics 2023-06-06 Yuto Shoka , Genki Okano , Hiroyuki Suto , Satoshi Sumi , Hiroyuki Awano , Kenji Tanabe

Statistics of closed paths in two-dimensional (2D) systems, which just determines the interference quantum correction to conductivity and anomalous magnetoconductance, has been studied by computer simulation of a particle motion over the…

Disordered Systems and Neural Networks · Physics 2007-05-23 G. M. Minkov , A. V. Germanenko , V. A. Larionova , S. A. Negashev , I. V. Gornyi

For a fixed topological Markov shift, we consider measure-preserving dynamical systems of Gibbs measures for 2-locally constant functions on the shift. We also consider isomorphisms between two such systems. We study the set of all…

Dynamical Systems · Mathematics 2023-04-14 Katsukuni Nakagawa

Magnetic gels and elastomers are promising candidates to construct reversibly excitable soft actuators, triggered from outside by magnetic fields. These magnetic fields induce or alter the magnetic interactions between discrete rigid…

Soft Condensed Matter · Physics 2019-10-02 Lukas Fischer , Andreas M. Menzel

For any $C^\infty$, area-preserving Anosov diffeomorphism $f$ of a surface, we show that a suspension flow over $f$ is $C^\infty$-conjugate to a constant-time suspension flow of a hyperbolic automorphism of the two torus if and only if the…

Dynamical Systems · Mathematics 2018-04-24 Cameron Bishop , David Hughes , Kurt Vinhage , Yun Yang

In this paper we prove that the space of flat metrics (nonpositively curved Euclidean cone metrics) on a closed, oriented surface is marked length spectrally rigid. In other words, two flat metrics assigning the same lengths to all closed…

Geometric Topology · Mathematics 2015-04-07 Anja Bankovic , Christopher J. Leininger

Direct expressions for the magnetic anisotropy constants are given at a finite temperature from microscopic viewpoints. In the present derivation, it is assumed that the Hamiltonian is a linear function with respect to the magnetization…

Materials Science · Physics 2015-10-26 Daisuke Miura , Ryo Sasaki , Akimasa Sakuma