Experimental optical phase measurement approaching the exact Heisenberg limit
Measurements of an unknown optical phase have not yet been performed with the ultimate precision, i.e. saturating the Heisenberg limit. Here, Daryanoosh et al. demonstrate this with a precision within 4% of the Heisenberg limit by combining photonic entanglement and multiple passes.
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2018-11-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-018-06601-7 |