Sensing rotations with multiplane light conversion

Abstract

We report an experiment estimating the three parameters of a general rotation. The scheme uses quantum states attaining the ultimate precision dictated by the quantum Cramér-Rao bound. We realize the states experimentally using the orbital angular momentum of light and implement the rotations with a multiplane light conversion setup, which allows one to perform arbitrary unitary transformations on a finite set of spatial modes. The observed performance suggests a range of potential applications in the next generation of rotation sensors.

8 pages, 4 figures. Comments welcome! arXiv admin note: text overlap with arXiv:2012.00590

References in corpus (5)

• Quantum Optical Metrology -- The Lowdown on High-N00N States
• Efficient and mode selective spatial mode multiplexer based on Multi-Plane Light Conversion
• Biased tomography schemes: an objective approach
• Observation of the quantum Gouy phase
• Unpolarized states and hidden polarization

Cited by in corpus (6)

• Generating a 4-photon Tetrahedron State: Towards Simultaneous Super-sensitivity to Non-commuting Rotations
• Nonlocality enhanced precision in quantum polarimetry via entangled photons
• Quantum metrology of rotations with mixed spin states
• Quantum Estimation of the Stokes Vector Rotation for a General Polarimetric Transformation
• Quantum multiphase estimation
• Spin coherence scale: operator-ordering sensitivity beyond the Heisenberg-Weyl group