138 citations · 1.1k across the 25 of their papers we have counts for
7 papers · 1 filter
A quantum logic gate for free electrons
Stefan Löffler, Thomas Schachinger, Peter Hartel +6
The topological charge of vortex electrons spans an infinite-dimensional Hilbert space. Selecting a two-dimensional subspace spanned by , a beam electron in a transmis…
The electron microscope as a quantum gate
Peter Schattschneider, Stefan Löffler
We propose to use the topological charge instead of the spin variable to span a two-dimensional Hilbert space for beam electrons in a transmission electron microscope (TEM). In thi…
Entanglement and Entropy in Electron-Electron Scattering
Peter Schattschneider, Stefan Löffler, Herbert Gollisch +1
Treating Coulomb scattering of two free electrons in a stationary approach, we explore the momentum and spin entanglement created by the interaction. We show that a particular disc…
Spin polarisation with electron Bessel beams
Peter Schattschneider, Vincenzo Grillo
The theoretical possibility to use an electron microscope as a spin polarizer is studied. It turns out that a Bessel beam passing a standard magnetic objective lens is intrinsicall…
Is magnetic chiral dichroism feasible with electron vortices?
Peter Schattschneider, Stefan Löffler, Michael Stöger-Pollach +1
We discuss the feasibility of detecting magnetic transitions with focused electron vortex probes, suggested by selection rules for the magnetic quantum number. We theoretically est…
A novel vortex generator and mode converter for electrons
Peter Schattschneider, Michael Stoeger-Pollach, Johan Verbeeck
A mode converter for electron vortex beams is described. Numerical simulations, confirmed by experiment, show that the converter transforms a vortex beam with topological charge $m…