TY - JOUR AU - Luis Aina, Alfredo PY - 2017 DO - 10.1103/PhysRevA.95.032113 SN - 2469-9926 UR - https://hdl.handle.net/20.500.14352/17777 T2 - Physical review A AB - We provide a very simple case showing that the weak form of the Heisenberg limit can be beaten while the prior information is improved without bias. LA - eng PB - Amer Physical Soc KW - Quantum phase measurements KW - Likelihood KW - Metrology TI - Breaking the weak Heisenberg limit TY - journal article VL - 95 ER -