3 papers
quant-ph2026
Shallow randomized measurement in noisy quantum devices
Gyungmin Cho, Dohun Kim
Quantum hardware is steadily improving, but near-term quantum devices remain limited by noise and circuit depth. This motivates measurement protocols that can use shallow-depth cir…
quant-ph2026
Single-copy stabilizer learning: average case and worst case
Gyungmin Cho, Dohun Kim
We study single-copy stabilizer learning, the problem of identifying a stabilizer group of dimension from an -qubit quantum state . We obtain two complementary results…
quant-ph2025
Sample-optimal single-copy quantum state tomography with shallow-depth measurements
Gyungmin Cho, Dohun Kim
Quantum state tomography (QST) is a central task in quantum information, and its efficiency is commonly characterized by sample complexity. Although collective measurements on mult…