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Journal Article

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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1612.06804.pdf
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Citation

Bouchard, F., de la Hoz, P., Bjork, G., Boyd, R. W., Grassl, M., Hradil, Z., et al. (2017). Quantum metrology at the limit with extremal Majorana constellations. Optica, 4(11), 1429-1432. doi:10.1364/OPTICA.4.001429.


Cite as: https://hdl.handle.net/21.11116/0000-0006-DF3A-F
Abstract
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.