RT Journal Article T1 Breaking the weak Heisenberg limit A1 Luis Aina, Alfredo 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. PB Amer Physical Soc SN 2469-9926 YR 2017 FD 2017-03-13 LK https://hdl.handle.net/20.500.14352/17777 UL https://hdl.handle.net/20.500.14352/17777 LA eng NO ©2017 American Physical SocietyI thank Dr. Angel Rivas and Dr. Jesus Rubio for enlightening discussions and acknowledge support from Spanish MINECO Grant no. FIS2012-35583 and CAM research consortium QUITEMAD+ Grant No. S2013/ICE-2801. NO Ministerio de Economía y Competitividad (MINECO) NO Comunidad de Madrid DS Docta Complutense RD 6 abr 2025