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oai:docta.ucm.es:20.500.14352/182922023-08-26T14:50:43Zcom_20.500.14352_14col_20.500.14352_15

Quantum metrology at the limit with extremal Majorana constellations Hoz Iglesias, Pablo de la Sánchez Soto, Luis Lorenzo otros, ... 535 Optics Óptica (Física) 2209.19 Óptica Física © 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. Ministerio de Economia y Competitividad (MINECO) Technologicka Agentura Ceske Republiky (TACR) Grantova Agentura Ceske Republiky (GACR) Depto. de Óptica Fac. de Ciencias Físicas TRUE pub 2023-06-17T22:15:54Z 2023-06-17T22:15:54Z 2017-11-20 journal article https://hdl.handle.net/20.500.14352/18292 2334-2536 10.1364/OPTICA.4.001429 eng FIS2015-67963-P TE01020229 15-03194S open access application/pdf Optical Soc Amer