11 January 2008 A decoherent limit of fault-tolerant quantum computation driven by coherent fields
Author Affiliations +
Abstract
Based on amplitude character of quantum Rabi oscillation driven by coherent field we show that there exists an upper bound to logic complexity of quantum circuit. We introduce a parameter called single-qubit logic complexity and estimate its decoherence limit in a reasonable case. The analysis show that a generally accepted constant threshold of the threshold theorem limits the logic complexity to so small a number that even a typical construction of fault-tolerant quantum Toffoli gate can hardly be implemented reliably. This result suggests that the construction of feasible fault-tolerant quantum gates is still an arduous task.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Li Yang, Yufu Chen, "A decoherent limit of fault-tolerant quantum computation driven by coherent fields", Proc. SPIE 6827, Quantum Optics, Optical Data Storage, and Advanced Microlithography, 682708 (11 January 2008); doi: 10.1117/12.755948; https://doi.org/10.1117/12.755948
PROCEEDINGS
6 PAGES


SHARE
Back to Top