Arbitrary phase shift of a semiconductor quantum dot charge qubit on a short time scale Gang Cao, Hai-Ou Li, Xiang-Xiang Song, Guo-Dong Yu, Bao-Bao Chen, Ming Xiao and Guo-Ping Guo EPL, 112 3 (2015) 37005 Published online: 30 November 2015 DOI: 10.1209/0295-5075/112/37005