All Optical Implementation of Multi-Spin Entanglement in a Semiconductor Quantum Well
arXiv:quant-ph/0206191 · doi:10.1038/nmat839
Abstract
We use ultrafast optical pulses and coherent techniques to create spin entangled states of non-interacting electrons bound to donors (at least three) and at least two Mn2+ ions in a CdTe quantum well. Our method, relying on the exchange interaction between localized excitons and paramagnetic impurities, can in principle be applied to entangle a large number of spins.
17 pages, 3 figures