New light shed on electron spin flips Date: January 7, 2015 Source: Helmholtz-Zentrum Berlin für Materialien und Energie Summary: Researchers have derived a new set of equations that allows for ...

This sprawling equation fills half a page in 12-point type. It’s held together by “renormalization” — the mathematical equivalent of duct tape — and contains a bunch of arbitrary numbers ... quantum ...

Carbon nanotube field emitters are at present the brightest available electron sources but must operate at low currents to avoid Coulomb expansion and are therefore not suitable for ultrafast imaging.

To solve the linear system of equations derived from Equation (6), we could use either direct or iterative methods. We use the iterative generalized minimum residue method 21, which saves both ...

A new article presents a theoretical analysis of electron spins in moving semiconductor quantum dots, showing how these can be controlled by electric fields in a way that suggests they may be ...