Continuous quantum error correction by cooling

Abstract

We describe an implementation of quantum error correction that operates continuously in time and requires no active interventions such as measurements or gates. The mechanism for carrying away the entropy introduced by errors is a cooling procedure. We evaluate the effectiveness of the scheme by simulation, and remark on its connections to some recently proposed error prevention procedures.

8 pages, 5 figures. Published version. Minor change in content

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• Pair-cat codes: autonomous error-correction with low-order nonlinearity
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• Describing quantum metrology with erasure errors using weight distributions of classical codes
• Towards self-correcting quantum codes for neutral atom arrays
• Automated discovery and optimization of autonomous quantum error correction codes for a general open quantum system
• Quantum Error Correction with Superpositions of Squeezed Fock States
• Autonomous Quantum Error Correction in a Four-Photon Kerr Parametric Oscillator