We study the constraints of supersymmetry on the non-Abelian holonomy given by U = P exp(i ∫ A), the path-ordered exponential of a connection A. For theories with four supercharges, we show that A satisfies the tt* equations if it is a function of chiral multiplets. In contrast, when A is a function of vector multiplets, it satisfies the Bogomolnyi monopole equations. We describe applications o...

M. Gradhand,1,4,* D. V. Fedorov,2 F. Pientka,2,3 P. Zahn,2 I. Mertig,1,2 and B. L. Györffy4 1Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany 2Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, D-06099 Halle, Germany 3Dahlem Center for Complex Quantum Systems and Fachbereich Physik, Freie Universität Berlin, D-14195 Berlin, Germany 4H. H. Wills Physi...

Recent progress in wave packet dynamics based on the insight of M. V. Berry pertaining to adiabatic evolution of quantum systems has led to the need that a new property of a Bloch state, the Berry curvature, has to be calculated from first principles. We report here on the response to this challenge by the ab initio community during the past decade. First we give a tutorial introduction of the ...

In recent years it has become clear that electronic Berry curvature (BC) is a key concept to understand and predict physical properties of crystalline materials. A wealth interesting Hall-type responses in charge, spin heat transport are caused by the BC associated bands inside solid: anomalous Hall effects magnetic materials, various nonlinear Nernst non-magnetic systems lack inversion symmetr...

Context and Motivation This talk notes the advanced state of the natural language (NL) processing art and considers four broad categories of tools for processing NL requirements documents. These tools are used in a variety of scenarios. The strength of a tool for a NL processing task is measured by its recall and precision.  2012 D.M. Berry, R. Gacitua, P. Sawyer, & S.F. Tjong Requirements Eng...

Antioxidant activity of Berry (Morus alba var. nigra) was investigated. For superoxide anion radical assay, the superoxide anion radicals were generated by a pyrogallol auto oxidation system, Nitric oxide radical inhibition by the use of Griess Illosvoy reaction and reducing power was determined according to the Oyaizu method. At least this sample was represented a potential antioxidant capacit...

We consider the semiclassical equations of motion of a particle when both an external electromagnetic field and the Berry gauge field in the momentum space are present. It is shown that these equations are Hamiltonian and relations between the canonical and covariant variables are determined through a consistent account of all components of the Berry connection. The Jacobian of the canonical-to...