3 papers
quant-ph2026
Learning Sparse Quantum States
Aniruddha Sen
We study the problem of tomography for -sparse quantum states. In contrast to classical distribution learning, where tight sample and time complexity bounds in terms of support…
quant-ph2026
Classical shadows with arbitrary group representations
Maxwell West, Frederic Sauvage, Aniruddha Sen +6
Classical shadows (CS) has recently emerged as an important framework to efficiently predict properties of an unknown quantum state. A common strategy in CS protocols is to paramet…
quant-ph2026
Nearly Time-Optimal Pure State Tomography with Pauli Measurements
Sabee Grewal, Meghal Gupta, William He +2
We give an algorithm for pure state tomography with near-optimal copy and time complexity using only single-qubit measurements. Specifically, given copies of…