Work

Error threshold estimates for surface code with loss of qubits

Year: 2012

Type: article

Abstract: We estimate optimal thresholds for surface codes in the presence of loss via an analytical method developed in statistical physics. The optimal threshold for the surface code is closely related to a special critical point in a finite-dimensional spin glass, which is disordered magnetic material. We compare our estimations to the heuristic numerical results reported in earlier studies. Further application of our method to the depolarizing channel, a natural generalization of the noise model, unveils its wider robustness even with loss of qubits.

Source: Physical Review A

DOI: 10.1103/physreva.85.060301

Author: Masayuki Ohzeki

Institutions: Kyoto University, Sapienza University of Rome

Language: English

Topic: Quantum Computing Algorithms and Architecture

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: bronze

Funders: Ministry of Education, Culture, Sports, Science and Technology, Japan Society for the Promotion of Science

Awards: Precise determination of the multicritical point by renormalization group and duality analysis, Statistical mechanics and Information processing for optimization and control by nonequilibrium relation