Broadband 2D Electronic Spectroscopy Reveals Coupling Between Dark 1Bu- State of Carotenoid and Qx State of BacteriochlorophyllEvgeny E. Ostroumov, Chanelle C. Jumper, Rachel M. Mulvaney, Richard J. Cogdell and Gregory D. ScholesEPJ Web of Conferences, 41 (2013) 08005DOI: https://doi.org/10.1051/epjconf/20134108005