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FRI: Friday Contributed Sessions

FRI 7: Entanglement and Complexity: Contributed Session to Symposium III

FRI 7.5: Talk

Friday, September 12, 2025, 11:45–12:00, ZHG008

Purification of Noisy Measurements and Faithful Distillation of Entanglement — •Jaemin Kim, Jiyoung Yun, and Joonwoo Bae — School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea

We consider entanglement distillation with noisy operations in which quantum measurements that constitute a general quantum operation are particularly noisy. We present a protocol for purifying noisy measurements and show that imperfect local operations can distill entanglement. The protocol works for arbitrary noisy measurements in general and is cost-effective and resource-efficient with single additional qubit per party to resolve the distillation of entanglement. The purification protocol is feasible with currently available quantum technologies and readily applied to entanglement applications.

Keywords: entanglement distillation; entanglement purification; NISQ; noisy measurement; measurement error