@article {1803.05891, archivePrefix = {arXiv}, eprint = {1803.05891}, primaryClass = {quant-ph}, author = {Francesco Albarelli and Matteo A. C. Rossi and Dario Tamascelli and Marco G. Genoni}, title = {Restoring Heisenberg scaling in noisy quantum metrology by monitoring the environment}, year = {2018}, url = {http://arxiv.org/abs/1803.05891} }