Physics – Quantum Physics
Scientific paper
2012-02-29
Physics
Quantum Physics
11 pages, 13 figures
Scientific paper
Tremendous efforts have been paid for realization of fault-tolerant quantum computation so far. However, preexisting fault-tolerant schemes assume that a lot of qubits live together in a single quantum system, which is incompatible with actual situations of experiment. Here we propose a novel architecture for practically scalable quantum computation, where quantum computation is distributed over small-size (four-qubit) local systems, which are connected by quantum channels. We show that the proposed architecture works even with the error probability 0.1% of local operations, which breaks through the consensus by one order of magnitude. Furthermore, the fidelity of quantum channels can be very low $\sim$ 0.7, which substantially relaxes the difficulty of scaling-up the architecture. All key elements and their accuracy required for the present architecture are within reach of current technology. The present architecture allows us to achieve efficient scaling of quantum computer, as has been achieved in today's classical computer.
Fujii Keisuke
Imoto Nobuyuki
Koashi Masato
Yamamoto Takashi
No associations
LandOfFree
A distributed architecture for scalable quantum computation with realistically noisy devices does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A distributed architecture for scalable quantum computation with realistically noisy devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A distributed architecture for scalable quantum computation with realistically noisy devices will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-524985