Holonomic surface codes for fault-tolerant quantum computation
Jiang ZhangQuantum Physics and Quantum Information Division, Beijing Computational Science Research Center, Beijing 100193, ChinaSimon J. DevittCenter for Engineered Quantum Systems, Department of Physics and Astronomy, Macquarie University, Sydney, New South Wales 2109, AustraliaJ. Q. YouQuantum Physics and Quantum Information Division, Beijing Computational Science Research Center, Beijing 100193, ChinaFranco NoriPhysics Department, The University of Michigan, Ann Arbor, Michigan 48109-1040, USA
2018en
ABI
Abstract
Surface codes can protect quantum information stored in qubits from local errors as long as the per-operation error rate is below a certain threshold. Here we propose holonomic surface codes by harnessing the quantum holonomy of the system. In our scheme, the holonomic gates are built via auxiliary qubits rather than the auxiliary levels in multilevel systems used in conventional holonomic quantum computation. The key advantage of our approach is that the auxiliary qubits are in their ground state before and after each gate operation, so they are not involved in the operation cycles of surface codes. This provides an advantageous way to implement surface codes for fault-tolerant quantum computation.
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