New Sketch Tomography Method Enhances Quantum State Estimation

Researchers have developed a new quantum state tomography procedure called Sketch Tomography, which hybridizes the classical shadow protocol with Matrix Product States (MPS). This method estimates the tensor components of a quantum state's density matrix by performing observable estimations. The procedure is proven to converge and its sample complexity scales quadratically with system size, offering more accurate estimations for moderately large subsystems compared to the standard classical shadow protocol and maximum likelihood estimation. AI

RANK_REASON This is a research paper detailing a new method for quantum state tomography. [lever_c_demoted from research: ic=1 ai=0.1]

Read on arXiv stat.ML →

• Classical Shadow protocol
• Matrix Product State
• Sketch Tomography
• Xun Tang

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• other

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