Optically triggered spin entanglement of electrons in semiconductors

Claudia Sifel, Ulrich Hohenester
2004 Semiconductor Science and Technology  
We propose a single-electron doped quantum dot in a field-effect structure as an optically triggered turnstile for spin-entangled electrons. A short laser pulse excites a charged exciton, whose quantum properties are transferred through tunneling and relaxation to the spin entanglement between electrons in the dot and contact.
doi:10.1088/0268-1242/19/4/132 fatcat:vnlqggpejzflza2ecpvbqe66ua