@ARTICLE {18872,
author={S. Chakraborty and L.N. Novo and AA Ambainis and Y. Omar},
doi={10.1103/PhysRevLett.116.100501},
journal={Physical Review Letters},
title={Spatial search by quantum walk is optimal for almost all graphs},
year={2016},
month={March},
volume={116},
number={NA},
pages={100501-NA},
ISSN={0031-9007}
}