Demonstration of a quantum error correction for enhanced sensitivity of photonic measurements

Citation:

L Cohen, Y Pilnyak, D Istrati, A Retzker, and HS Eisenberg. 7/15/2016. “Demonstration of a quantum error correction for enhanced sensitivity of photonic measurements.” Physical Review a, 94, 1. Publisher's Version

Abstract:

The sensitivity of classical and quantum sensing is impaired in a noisy environment. Thus, one of the main challenges facing sensing protocols is to reduce the noise while preserving the signal. State-of-the-art quantum sensing protocols that rely on dynamical decoupling achieve this goal under the restriction of long noise correlation times. We implement a proof-of-principle experiment of a protocol to recover sensitivity by using an error correction for photonic systems that does not have this restriction. The protocol uses a protected entangled qubit to correct a single error. Our results show a recovery of about 87% of the sensitivity, independent of the noise probability.
See also: 2016
Last updated on 07/04/2021