Creation of Quantum Error Correcting Codes in the Ultrastrong Coupling Regime

T. H. Kyaw, D. A. Herrera-Martı, E. Solano, G. Romero, L. C. Kwek

Published 2014-09-25Version 1

We propose to construct large quantum graph codes by means of superconducting circuits working at the ultrastrong coupling regime. In this physical scenario, we are able to create a cluster state between any pair of qubits within a fraction of a nanosecond. To exemplify our proposal, creation of the five-qubit and Steane codes are demonstrated. We also provide optimal operating conditions with which the graph codes can be realized with state-of-the-art superconducting technologies.