# Robust and Efficient High-Dimensional Quantum State Tomography.

@article{Rambach2021RobustAE, title={Robust and Efficient High-Dimensional Quantum State Tomography.}, author={Markus Rambach and Mahdi Qaryan and Michael Kewming and Christopher Ferrie and Andrew G. White and Jacquiline Romero}, journal={Physical review letters}, year={2021}, volume={126 10}, pages={ 100402 } }

The exponential growth in Hilbert space with increasing size of a quantum system means that accurately characterizing the system becomes significantly harder with system dimension d. We show that self-guided tomography is a practical, efficient, and robust technique of measuring higher-dimensional quantum states. The achieved fidelities are over 99.9% for qutrits (d=3) and ququints (d=5), and 99.1% for quvigints (d=20)-the highest values ever realized for qudit pure states. We also show…

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