Efficient Characterizations of Multiphoton States with an Ultra-thin Optical Device
arXiv:2308.07067 · doi:10.1038/s41467-024-48213-4
Abstract
Metasurface enables the generation and manipulation of multiphoton entanglement with flat optics, providing a more efficient platform for large-scale photonic quantum information processing. Here, we show that a single metasurface optical device would allow more efficient characterizations of multiphoton entangled states, such as shadow tomography, which generally requires fast and complicated control of optical setups to perform information-complete measurements, a demanding task using conventional optics. The compact and stable device here allows implementations of general positive observable value measures with a reduced sample complexity and significantly alleviates the experimental complexity to implement shadow tomography. Integrating self-learning and calibration algorithms, we observe notable advantages in the reconstruction of multiphoton entanglement, including using fewer measurements, having higher accuracy, and being robust against experimental imperfections. Our work unveils the feasibility of metasurface as a favorable integrated optical device for efficient characterization of multiphoton entanglement, and sheds light on scalable photonic quantum technologies with ultra-thin optical devices.
24 pages, 12 figures
References in corpus (38)
- Dielectric Metasurfaces for Complete Control of Phase and Polarization with Subwavelength Spatial Resolution and High Transmission
- Topological entanglement entropy
- On the Measurement of Qubits
- Experimental One-Way Quantum Computing
- Predicting Many Properties of a Quantum System from Very Few Measurements
- Quantum state tomography via compressed sensing
- Symmetric Informationally Complete Quantum Measurements
- Probing entanglement entropy via randomized measurements
- Metasurfaces for Quantum Photonics
- Quantum metasurface for multi-photon interference and state reconstruction
- Metasurface interferometry towards quantum sensors
- Resonant Semiconductor Metasurfaces for Generating Complex Quantum States
- Reconstructing quantum states with generative models
- Mixed-state entanglement from local randomized measurements
- Experimental demonstration of topological error correction
- Experimental demonstration of graph-state quantum secret sharing
- Distributed quantum phase estimation with entangled photons
- Cross-Platform Verification of Intermediate Scale Quantum Devices
- Adaptive quantum state tomography improves accuracy quadratically
- Robust shadow estimation
- Self-guided quantum tomography
- Systematic errors in current quantum state tomography tools
- Classical Shadows With Noise
- Single-copies estimation of entanglement negativity
- Learning to Measure: Adaptive Informationally Complete Generalized Measurements for Quantum Algorithms
- Secret sharing of a quantum state
- Experimental single-setting quantum state tomography
- Robust and Efficient High-dimensional Quantum State Tomography
- Experimental Demonstration of Self-Guided Quantum Tomography
- Experimental quantum state measurement with classical shadows
- Scalable generation of multi-photon entangled states by active feed-forward and multiplexing
- Achieving quantum precision limit in adaptive qubit state tomography
- Optimising shadow tomography with generalised measurements
- Quantum scrambling with classical shadows
- Detecting multipartite entanglement structure with minimal resources
- Practical adaptive quantum tomography
- Characterizing correlation within multipartite quantum systems via local randomized measurements
- A scheme to create and verify scalable entanglement in optical lattice