Efficiently measuring nonlinear properties, like the entanglement spectrum, is a significant
yet challenging task from quantum information processing to many-body physics. Current …

Quantum error mitigation is a key approach for extracting target state properties on state-of-
the-art noisy machines and early fault-tolerant devices. Using the ideas from flag fault …

Throughout its history, the theory of quantum error correction has heavily benefited from
translating classical concepts into the quantum setting. In particular, classical notions of …

We present an advanced quantum error suppression technique, which we dub robust error
accumulation suppression (REAS). Our method reduces the accumulation of errors in any …

Given many copies of an unknown quantum state $\rho $, we consider the task of learning a
classical description of its principal eigenstate. Namely, assuming that $\rho $ has an …