Testing Bell's Inequality with Ballistic Electrons in Semiconductors
  We propose an experiment to test Bell's inequality violation in condensed-matter physics. We show how to generate, manipulate and detect entangled states using ballistic electrons in Coulomb-coupled semiconductor quantum wires. Due to its simplicity (only five gates are required to prepare entangled states and to test Bell's inequality), the proposed semiconductor-based scheme can be implemented with currently available technology. Moreover, its basic ingredients may play a role towards large-scale quantum-information processing in solid-state devices. 
Radu Ionicioiu (1,2), Paolo Zanardi (1,2), Fausto Rossi (1,2,3) ((1)   Istituto Nazionale per la Fisica della Materia (INFM)...