%0 Journal Article
%T Quantum manipulation of two-electron spin states in metastable double quantum dots
%A Benoit Bertrand
%A Hanno Flentje
%A Shintaro Takada
%A Michihisa Yamamoto
%A Seigo Tarucha
%A Arne Ludwig
%A Andreas D. Wieck
%A Christopher B£żuerle
%A Tristan Meunier
%J Physics
%D 2014
%I arXiv
%R 10.1103/PhysRevLett.115.096801
%X We studied experimentally the dynamics of the exchange interaction between two antiparallel electron spins in a so-called metastable double quantum dot where coupling to the electron reservoirs can be ignored. We demonstrate that the level of control of such a double dot is higher than in conventional double dots. In particular, it allows to couple coherently two electron spins in an efficient manner following a scheme initially proposed by Loss and DiVincenzo. The present study demonstrates that metastable quantum dots are a possible route to increase the number of coherently coupled quantum dots.
%U http://arxiv.org/abs/1411.7065v1