Mini-batch stochastic gradient descent with Pauli measurements can reconstruct low-rank quantum states online, with local linear convergence guarantees and lower time complexity than prior non-convex methods.
Experimental quantum compressed sensing for a seven-qubit system,
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Online Quantum State Tomography via Stochastic Gradient Descent
Mini-batch stochastic gradient descent with Pauli measurements can reconstruct low-rank quantum states online, with local linear convergence guarantees and lower time complexity than prior non-convex methods.