Hoz Iglesias, Pablo de laSánchez Soto, Luis Lorenzootros, ...2023-06-172023-06-172017-11-202334-253610.1364/OPTICA.4.001429https://hdl.handle.net/20.500.14352/18292© 2017 Optical Society of America. Artículo escrito por más de 10 autores. Funding: Natural Sciences and Engineering Research Council of Canada NSERC); Canada Foundation for Innovation (CFI); Technologicka Agentura Ceske Republiky (TACR) (TE01020229); Grantova Agentura Ceske Republiky (GACR) (15-03194S); Ministerio de Economia y Competitividad (MINECO) FIS2015-67963-P)Quantum metrology allows for a tremendous boost in the accuracy of measurement of diverse physical parameters. The estimation of a rotation constitutes a remarkable example of this quantum-enhanced precision. The recently introduced Kings of Quantumness are especially germane for this task when the rotation axis is unknown, as they have a sensitivity independent of that axis and they achieve a Heisenberg-limit scaling. Here, we report the experimental realization of these states by generating up to 21-dimensional orbital angular momentum states of single photons, and confirm their high metrological abilities.engjournal articlehttp://dx.doi.org/10.1364/OPTICA.4.001429https://www.osapublishing.orgopen access535OpticsÓptica (Física)2209.19 Óptica Física