3 papers
quant-ph2026
Enhanced quantum capacity thresholds from symmetry
Avantika Agarwal, Amolak Ratan Kalra, Sungjai Lee +4
The quantum capacity captures the value of a quantum channel for transmitting quantum information, establishing the fundamental limits on quantum communication. In spite of its cen…
quant-ph2025
Streaming quantum state purification for general mixed states
Daniel Grier, Debbie Leung, Zhi Li +2
Given multiple copies of a mixed quantum state with an unknown, nondegenerate principal eigenspace, quantum state purification is the task of recovering a quantum state that is clo…
quant-ph2025
Streaming quantum state purification
Andrew M. Childs, Honghao Fu, Debbie Leung +3
Quantum state purification is the task of recovering a nearly pure copy of an unknown pure quantum state using multiple noisy copies of the state. This basic task has applications…