Programme: IARPA, LogiQ program, IARPA-BAA-15-10

Project coordinator: TU Delft
Partner Institutions: Zurich Instruments, Netherlands Organisation for Applied Scientific Research, ETH Zurich

Large-scale quantum computation hinges on the ability to preserve and process quantum information with higher fidelity by increasing redundancy in a quantum error correction (QEC) code. Achieving such quantum fault tolerance in an extensible architecture remains an outstanding challenge for all experimental quantum computing platforms. Our QuSurf team targets the realization of an error-corrected quantum bit degree of freedom, a logical qubit, with a superconducting circuit implementation of surface coding. We choose this QEC scheme for its high fault-tolerance error threshold and modest interconnectivity requirements [1], making it very promising for the eventual demonstration of quantum fault tolerance.

[1] A. G. Fowler, M. Mariantoni, J. M. Martinis, and A. N. Cleland, Surface codes: Towards practical large-scale quantum computation, Physical Review A 86, 032324 (2012).