Author

Aniruddha Sen

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Preprint Sep 2026

Learning Sparse Quantum States

This work gives the first near optimal algorithm for learning $n$-qubit $k$-sparse pure quantum states, obtaining fidelity at least $1-\varepsilon$ with high probability using $\tilde{O}(k/\varepsilon)$ copies of the state and $\tilde{O}(kn/\varepsilon)$ time.

Aniruddha Sen · 0 citations