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We describe a simple scenario of inflationary magnetogenesis based on a helical coupling to electromagnetism. It allows to generate helical magnetic fields of strength of order up to $10^{- 7}\,\text{G}$, when extrapolated to the current…

Cosmology and Nongalactic Astrophysics · Physics 2019-12-02 Yu. V. Shtanov , M. V. Pavliuk

Magnetically coupled hybrid quantum systems enable robust quantum state control through Landau-Zener transitions. Here, we show that an ultracold atomic sample coupled to a nanomechanical resonator via oscillating magnetic fields can be…

Quantum Physics · Physics 2016-10-12 A. Tretiakov , L. J. LeBlanc

Omnigenity is a desirable property of toroidal magnetic fields that ensures confinement of trapped particles. Confining charged particles is a basic requirement for any fusion power plant design, but it can be difficult to satisfy with the…

Plasma Physics · Physics 2024-04-05 Daniel W. Dudt , Alan G. Goodman , Rory Conlin , Dario Panici , Egemen Kolemen

We investigate analytically the amplification of a weak magnetic field in a homogeneous and isotropic turbulent flow lacking reflectional symmetry (helical turbulence). We propose that the spectral distributions of magnetic energy and…

Astrophysics · Physics 2007-05-23 Stanislav Boldyrev , Fausto Cattaneo , Robert Rosner

It is shown that one can stimulate, by using the present-day laboratory magnetic fields, transitions between the $lm$ sub-levels of fast $\mu He^+$ ions formating in muon catalyzed fusion. Strong fields also cause the self-ionization from…

Atomic Physics · Physics 2009-10-31 Vladimir S. Melezhik , Peter Schmelcher

The magnetic-field-induced assembly of magnetic nanoparticles (NPs) provides a unique and flexible strategy in the design and the fabrication of functional nanostructures and devices. We have investigated the field-driven self-assembly of…

Mesoscale and Nanoscale Physics · Physics 2016-04-12 Zhendong Fu , Yinguo Xiao , Artem Feoktystov , Vitaliy Pipich , Marie-Sousai Appavou , Yixi Su , Erxi Feng , W. T. Jin , Thomas Brueckel

A long-standing challenge in ultrafast magnetism and in functional materials research in general, has been the generation of a universal, ultrafast stimulus able to switch between stable magnetic states. Solving it would open up many new…

Superconductivity · Physics 2024-08-12 G. De Vecchi , G. Jotzu , M. Buzzi , S. Fava , T. Gebert , M. Fechner , A. Kimel , A. Cavalleri

Considerable effort has been devoted to the development of superconducting undulators (SCUs) intended for particle accelerator-based light sources, including synchrotrons and free electron laser (FEL) facilities. Recently, a…

Accelerator Physics · Physics 2025-03-17 Zhuangwei Chen , Marco Calvi , John Durrell , Cristian Boffo , Dabin Wei , Kai Zhang , Zhentang Zhao

Strongly stratified hydromagnetic turbulence has previously been found to produce magnetic flux concentrations if the domain is large enough compared with the size of turbulent eddies. Mean-field simulations (MFS) using parameterizations of…

Solar and Stellar Astrophysics · Physics 2014-02-06 A. Brandenburg , O. Gressel , S. Jabbari , N. Kleeorin , I. Rogachevskii

The continuous need for miniaturization and increase in device speed exerts pressureon the electronics industry to explore new avenues of information processing. One possibility is to use the spin to store, manipulate and carry information.…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Mona Berciu , Tatiana G. Rappoport , B. Janko

Foil windings have, due to their layered structure, different properties than conventional wire windings, which make them advantageous for high frequency applications. Both electromagnetic and thermal analyses are relevant for foil…

Computational Engineering, Finance, and Science · Computer Science 2025-10-28 Silas Weinert , Jonas Bundschuh , Yvonne Späck-Leigsnering , Herbert De Gersem

Providing an Ultra-Violet completion valid up to the Planck scale is of paramount importance to validate the composite Higgs paradigm, at par with supersymmetry. We propose the first complete and feasible framework, based on partial…

High Energy Physics - Phenomenology · Physics 2019-11-14 Giacomo Cacciapaglia , Shahram Vatani , Chen Zhang

A backward computation method has been developed to accelerate modelling of the critical state magnetization current in a staggered-array bulk high-temperature superconducting (HTS) undulator. The key concept is as follows: i) a large…

Superconductivity · Physics 2020-10-13 Kai Zhang , Mark Ainslie , Marco Calvi , Sebastian Hellmann , Ryota Kinjo , Thomas Schmidt

We theoretically study high-order harmonic generation (HHG) from solid-phase systems in spatially inhomogeneous strong laser fields originated by resonant plasmons within a metallic nanostructure. The intensity of the second plateau in HHG…

Optics · Physics 2016-09-12 Tao-Yuan Du , Zhong Guan , Xiao-Xin Zhou , Xue-Bin Bian

We describe the construction of a simple, compact, and cost-effective feedback system that produces flat-top field profiles in pulsed magnetic fields. This system is designed for use in conjunction with a typical capacitor-bank driven…

Instrumentation and Detectors · Physics 2015-10-19 Yoshimitsu Kohama , Koichi Kindo

The influence of an inhomogeneous magnetic field on the magnetoresistance of thin Al films, used in different superconductor/ferromagnet hybrids, has been investigated. Two contrasting magnetic textures with out-of-plane magnetization are…

Superconductivity · Physics 2009-11-13 W. Gillijns , A. Aladyshkin , A. V. Silhanek , V. V. Moshchalkov

A new type of helical undulator based on redistribution of magnetic field of a solenoid by ferromagnetic helix has been proposed and studied both in theory and experiment. Such undulators are very simple and efficient for promising sources…

Accelerator Physics · Physics 2018-01-17 N. Balal , I. V. Bandurkin , V. L. Bratman , A. E. Fedotov

There is strong observational evidence for the presence of large-scale magnetic fields MF in galaxies and clusters, with strength $\sim \mu$G and coherence lenght on the order of Kpc. However its origin remains as an outstanding problem.…

Cosmology and Nongalactic Astrophysics · Physics 2014-09-08 Eduard F. Piratova , Edilson A. Reyes , Héctor J. Hortúa

Understanding and controlling the motion of superconducting vortices has been a key issue in condensed matter physics and applied superconductivity. Here we present a method for macroscopically manipulating the vortices based on travelling…

Superconductivity · Physics 2023-06-06 Wei Wang , Jiafu Wei , Chenghuai Wu , Guangtong Ma , Hong Li , Hanxin Ye , Yuntian Zhang

Very short and well shaped magnetic field pulses can be generated using ultra-relativistic electron bunches at Stanford Linear Accelerator. These fields of several Tesla with duration of several picoseconds are used to study the response of…

Other Condensed Matter · Physics 2009-09-29 Ioan Tudosa