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Magnetic flux is continuously being removed and replenished on the solar surface. To understand the removal process we carried out 3D radiative MHD simulations of the evolution of patches of photospheric magnetic field with equal amounts of…

Solar and Stellar Astrophysics · Physics 2015-05-30 Robert Cameron , Alexander Voegler , Manfred Schuessler

The dynamic properties of the quiet Sun photosphere can be investigated by analyzing the pair dispersion of small-scale magnetic fields (i.e., magnetic elements). By using $25$ hr-long Hinode magnetograms at high spatial resolution…

Solar and Stellar Astrophysics · Physics 2015-02-16 F. Giannattasio , F. Berrilli , L. Biferale , D. Del Moro , M. Sbragaglia , L. Bellot Rubio , M. Gosic , D. Orozco Suarez

The separation of photogenerated polaron pairs in organic bulk heterojunction solar cells is the intermediate but crucial step between exciton dissociation and charge transport to the electrodes. In state-of-the-art devices, above 80% of…

Materials Science · Physics 2009-07-16 C. Deibel , T. Strobel , V. Dyakonov

Proof-of-principle experiments have demonstrated an electrostatic field evaporation based deuterium ion source for use in compact, high-output deuterium-tritium neutron generators. The ion source produces principally atomic deuterium and…

Instrumentation and Detectors · Physics 2008-12-18 Birk Reichenbach , I. Solano , P. R. Schwoebel

Compton scattering of polarized radiation in a strong magnetic field is considered. The recipe for calculation of the scattering matrix elements, the differential and total cross sections based on quantum electrodynamic (QED) second order…

High Energy Astrophysical Phenomena · Physics 2016-05-11 Alexander A. Mushtukov , Dmitrij I. Nagirner , Juri Poutanen

An ab initio simulation of strong-field photodissociation of diatomic molecules was developed, inspired by recent dissociation experiments of F2-. The transition between electronic states was modeled, including the laser pulse and…

Atomic Physics · Physics 2020-06-26 Bar Ezra , Shimshon Kallush , Ronnie Kosloff

Employing the low-energy effective theory alongside a combination of analytical and numerical techniques, we explore the Landau level collapse phenomenon, uncovering previously undisclosed features. We consider both finite-width graphene…

Mesoscale and Nanoscale Physics · Physics 2024-09-05 A. A. Herasymchuk , S. G. Sharapov , V. P. Gusynin

In a recent letter (Trujillo Bueno et al. 2002), we showed the remarkable result that the atomic alignment of the levels P$_{1/2}$ and S$_{1/2}$ of the D$_1$ line of Na I is practically destroyed in the presence of magnetic fields sensibly…

Astrophysics · Physics 2009-11-07 R. Casini , E. Landi Degl'Innocenti , M. Landolfi , J. Trujillo-Bueno

In organic solar cells, photogenerated singlet excitons form charge transfer (CT) complexes, which subsequently split into free charge carriers. Here, we consider the contributions of excess energy and molecular quadrupole moments to the…

The quantum dynamics of an induced electric dipole in the presence of a configuration of crossed electric and magnetic fields is analyzed. This field configuration confines the dipole in a plane and produces a coupling similar to the…

High Energy Physics - Theory · Physics 2009-11-11 Claudio Furtado , J. R. Nascimento , L. R. Ribeiro

We consider insulating states of spin-one bosons in optical lattices in the presence of a weak magnetic field. For the states with more than one atom per lattice site we find a series of quantum phase transitions between states with fixed…

Soft Condensed Matter · Physics 2008-05-07 Adilet Imambekov , Mikhail Lukin , Eugene Demler

We demonstrate the ability to load, cool and detect singly-charged calcium ions in a surface electrode trap using only visible and infrared lasers for the trapped-ion control. As opposed to the standard methods of cooling using…

Atomic Physics · Physics 2017-07-27 F. Lindenfelser , M. Marinelli , V. Negnevitsky , S. Ragg , J. P. Home

Ionization of an atom or molecule by a strong laser field produces sub-optical cycle wave packets whose control has given rise to attosecond science. The final states of the wave packets depend on ionization and deflection by the laser…

We demonstrate the influence of damping and field-like torques in the magnon-photon coupling process by classically integrating the generalized Landau-Lifshitz-Gilbert equation with RLC equation in which a phase correlation between dynamic…

Mesoscale and Nanoscale Physics · Physics 2023-03-06 Anish Rai , M. Benjamin Jungfleisch

The rate of linear collisionless damping (Landau damping) in a classical electron gas confined to a heated ionized thin film is calculated. The general expression for the imaginary part of the dielectric tensor in terms of the parameters of…

Optics · Physics 2009-11-10 D. F. Zaretsky , Ph. A. Korneev , S. V. Popruzhenko , W. Becker

It is proposed to produce the highly charged ions in the local ion trap formed by a rippling electron beam in the focusing magnetic field. The experimental results demonstrate the presence of iridium ions with charges up to 50+. According…

Plasma Physics · Physics 2014-03-11 V. P. Ovsyannikov

Two preceding parts of a paper (cond-mat/0508457, cond-mat/0508460) considered the heuristic values of recent experiments pointing to the nearly universal occurrence of photovoltages across solid surfaces under short-circuit conditions.…

Materials Science · Physics 2007-06-27 O. Ivanov , Eugene Leyarovski , V. Lovchinov , Chr. Popov , M. Kamenova , M. Georgiev

The axion photon system in an external magnetic field, when the direction of propagation of axions and photons is orthogonal to the direction of the external magnetic field, displays a continuous axion-photon duality symmetry in the limit…

High Energy Physics - Theory · Physics 2010-10-27 E. I. Guendelman

We report microwave spectroscopy of co-trapped $^9\text{Be}^+$ and $^{40}\text{Ca}^+$ within a compact permanent-magnet-based Penning ion trap. The trap is constructed with a reconfigurable array of NdFeB rings providing a 0.654 T magnetic…

Atomic Physics · Physics 2022-01-11 Brian J. McMahon , Brian C. Sawyer

Electro-thermal poling experiments were carried out on a bioactive glass, and the kinetics of the Na+ ion depletion layer formation under the anode was studied in-situ by means of ac impedance spectroscopy. One important finding is a linear…

Materials Science · Physics 2008-10-03 C. R. Mariappan , B. Roling
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