Scientific Reports 1, Article number: 88 (2011); Published: 09 September 2011; Updated: 29 November 2012

In this article, Alán Aspuru-Guzik is not correctly recognised as a corresponding author. For correspondence and requests for materials, please contact Jiangfeng Du (djf@ustc.edu.cn) or Alán Aspuru-Guzik (aspuru@chemistry.harvard.edu).