Demonstration of quantum error correction for enhanced sensitivity of photonic measurements

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 rate.

References in corpus (8)

• Nanophotonic quantum phase switch with a single atom
• All-Optical Routing of Single Photons by a One-Atom Switch Controlled by a Single Photon
• Experimental Quantum Computations on a Topologically Encoded Qubit
• Using entanglement against noise in quantum metrology
• Quantum metrology enhanced by repetitive quantum error correction
• Nonlinear pi phase shift for single fiber-guided photons interacting with a single atom
• Universal time scaling for Hamiltonian parameter estimation
• Robust quantum metrological schemes based on protection of quantum Fisher information

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