Magnetic Domains
TLDR
In this paper, a Nahm transform has been discovered for magnetic bags, which are conjectured to arise in the large n limit of magnetic monopoles with charge n, and they are interpreted using string theory and presented some partial proofs of this conjecture.Abstract:
Recently a Nahm transform has been discovered for magnetic bags, which are conjectured to arise in the large n limit of magnetic monopoles with charge n We interpret these ideas using string theory and present some partial proofs of this conjecture We then extend the notion of bags and their Nahm transform to higher gauge theories and arbitrary domains Bags in four dimensions conjecturally describe the large n limit of n self-dual strings We show that the corresponding Basu-Harvey equation is the large n limit of an equation describing n M2-branes, and that it has a natural interpretation in loop space We also formulate our Nahm equations using strong homotopy Lie algebrasread more
Citations
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Book ChapterDOI
Spin-Torque Oscillators
Joo-Von Kim,Joo-Von Kim +1 more
TL;DR: In this paper, the theoretical aspects of magnetization oscillations driven by spin torques, such as spin waves and vortex gyration, are presented in detail and key experimental results are highlighted.
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Space-, time- and spin-resolved photoemission
TL;DR: In this article, the authors present a review of photoemission experiments that simultaneously resolve at least two of the following degrees of freedom: space (real and momentum space), time (intrinsic time scale of a fast experiment or time-of-flight) and spin.
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Iron Loss Model for Rotating Machines Using Direct Eddy Current Analysis in Electrical Steel Sheets
TL;DR: In this paper, the eddy current loss in electrical steel sheets is directly calculated by nonlinear time-domain electromagnetic field analysis with a simple approximation of the excess loss, and the hysteresis loss is also estimated by considering the flux distribution along the thickness of the steel sheet.
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Thermal Stability of Magnetic States in Circular Thin-Film Nanomagnets with Large Perpendicular Magnetic Anisotropy
TL;DR: In this paper, the scaling of the energy barrier to magnetization reversal in thin-film nanomagnets with perpendicular magnetization as a function of their lateral size is studied.
Journal ArticleDOI
Theory of skyrmion states in liquid crystals.
TL;DR: Within the Oseen-Frank theory, numerically exact solutions for axisymmetric localized states in chiral liquid crystal layers with homeotropic anchoring are derived that describe recently observed two-dimensional skyrmions in confinement-frustrated chiral nematics.
References
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Journal ArticleDOI
N=6 superconformal Chern-Simons-matter theories, M2-branes and their gravity duals
TL;DR: In this paper, the authors constructed three dimensional Chern-Simons-matter theories with gauge groups U(N) × U(n) and SU(N), SU(2) × SU (2) which have explicit = 6 superconformal symmetry.
Book
Introduction to symplectic topology
Dusa McDuff,Dietmar Salamon +1 more
TL;DR: In this article, the authors present a survey of the history of classical and modern manifold geometry, from classical to modern, including linear and almost complex structures, and the Arnold conjecture of the group of symplectomorphisms.
Journal ArticleDOI
Gauge symmetry and supersymmetry of multiple M2-branes
Jonathan Bagger,Neil Lambert +1 more
TL;DR: In this article, a supersymmetric field theory model for multiple M2-branes based on an algebra with a totally antisymmetric triple product is proposed. But the field is not dynamical.
Journal ArticleDOI
Dielectric-Branes
TL;DR: In this paper, the authors extend the usual action for a Dp-brane to the case of N coincident Dpbranes where the world-volume theory involves a U(N) gauge theory.
Journal ArticleDOI
Type iib superstrings, bps monopoles, and three-dimensional gauge dynamics
Amihay Hanany,Edward Witten +1 more
TL;DR: In this article, the Coulomb branch of certain three-dimensional supersymmetric gauge theories and the moduli spaces of magnetic monopoles are explained via string theory, and new phase transitions in three dimensions as well as new infrared fixed points and even new coupling constants are predicted from the string theory construction.