We have added all the new references suggested by Referee 2 on page 3 of the new manuscript. These includethe ones mentioned in our reply to Referee 1’s point 4 above, and all also the references: Corney98,Mekhov09,leroux10,Mekhov12,Niedenzu13,Lee14.
There are other papers that link BECs, sensing and continuous quantum measurement process (in the absence of a cavity) M. Saba, T. A. Pasquini, C. Sanner, Y. Shin, W. Ketterle, and D. E. Pritchard, Science 307, 1945 (2005).