Engineering autonomous error correction in stabilizer codes at finite temperature

C. Daniel Freeman, C. M. Herdman, K. B. Whaley
2017 Physical Review A  
We present an error correcting protocol that enhances the lifetime of stabilizer code based qubits which are susceptible to the creation of pairs of localized defects (due to string-like error operators) at finite temperature, such as the toric code. The primary tool employed is dynamic application of a local, unitary operator which exchanges defects and thereby translates localized excitations. Crucially, the protocol does not require any measurements of stabilizer operators, and therefore can
more » ... be used to enhance the lifetime of a qubit in the absence of such experimental resources.
doi:10.1103/physreva.96.012311 fatcat:q6hwdo5szfdong4wgn37xory4y