Quantum metrology at the limit with extremal Majorana constellations

Bouchard, F.; de la Hoz, P.; Bjork, G.; Boyd, R. W.; Grassl, Markus; Hradil, Z.; Karimi, E.; Klimov, A. B.; Leuchs, Gerd; Rehacek, J.; Sanchez-Soto, Luis

doi:10.1364/OPTICA.4.001429

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Quantum metrology at the limit with extremal Majorana constellations

MPS-Authors

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Grassl, Markus
Quantumness, Tomography, Entanglement, and Codes, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201115

Leuchs, Gerd
Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201174

Sanchez-Soto, Luis
Quantumness, Tomography, Entanglement, and Codes, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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引用

Bouchard, F., de la Hoz, P., Bjork, G., Boyd, R. W., Grassl, M., Hradil, Z., Karimi, E., Klimov, A. B., Leuchs, G., Rehacek, J., & Sanchez-Soto, L. (2017). Quantum metrology at the limit with extremal Majorana constellations. Optica, 4(11), 1429-1432. doi:10.1364/OPTICA.4.001429.

引用: https://hdl.handle.net/21.11116/0000-0006-DF3A-F

要旨

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.