Improving quantum circuit dependability with reconfigurable quantum gate arrays
Mihai Udrescu, Lucian Prodan, Mircea Vlăduţiu · 2005
The need for error detection and correction techniques is vital in quantum computation, due to the omnipresent nature of quantum errors. No realistic prospect of an operational quantum computational device may be warranted without such mechanisms. Therefore, the fact that error detecting and correcting techniques have been developed has enhanced the feasibility of a potential quantum computer [15] [18]. This paper presents a methodology for improving the fault tolerance of quantum circuits by using the so-called reconfigurable Quantum Gate Arrays (rQGAs). Our solution reduces the problem of stabilizer coding safe recovery to preserving a given quantum configuration state. As shown in this paper's practical example, the configuration register to be protected has a reduced number of qubits, and the overall dependability attribute [2]-- reliability measured by the accuracy threshold [15]-- is drastically improved