We report on the preparation and detection of entangled states between an electron spin 1/2 and a nuclear spin 1/2 in a molecular single crystal. These were created by applying pulses at ESR (9.5 GHz) and NMR (28 MHz) frequencies. Entanglement was detected by using a special entanglement detector sequence based on a unitary back transformation including phase rotation.
@article{arxiv.quant-ph/0209137,
title = {Entanglement between an electron and a nuclear spin 1/2},
author = {M. Mehring and J. Mende and W. Scherer},
journal= {arXiv preprint arXiv:quant-ph/0209137},
year = {2009}
}