2 papers
quant-ph2026
Online Shadow Tomography Matching the Classical Bounds
Sitan Chen, Ryan O'Donnell, Angelos Pelecanos +1
In Online Shadow Tomography, we are given copies of an unknown -dimensional quantum state , an adversary (adaptively) proposes a sequence of bounded observables $A^{(1)},\ldo…
quant-ph2025
Efficient Pauli channel estimation with logarithmic quantum memory
Sitan Chen, Weiyuan Gong
Here we revisit one of the prototypical tasks for characterizing the structure of noise in quantum devices: estimating every eigenvalue of an -qubit Pauli noise channel to error…