2005/12/15 by Radu Ionicioiu, R. Ionicioiu
Physics and Astronomy · #Mechanical and Optical Resonators #Quantum and electron transport phenomena #Topological Materials and Phenomena #quant-ph
paper · pdf · doi:10.1134/s1054660x06100070
published as Laser Physics 16, 1444 (2006) · 6+ pages, many figs
arxiv created 2005/12/15 · openalex publication_date 2006/09/28 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
We explore spintronics from a quantum information (QI) perspective. We show that QI specific methods can be an effective tool in designing new devices. Using the formalism of quantum gates acting on spin and mode degrees of freedom, we provide a solution to a reverse engineering problem, namely, how to design a device performing a given transformation between input and output. Among these, we describe an orientable Stern-Gerlach device and a new scheme to entangle two spins by transferring the entanglement from orbital to spin degrees of freedom. Finally, we propose a simple scheme to produce hyperentangled electrons, i.e., particles entangled in both the spin and mode degrees of freedom.