Here, we propose a way to control the interaction between qubits with always-on Ising interaction. Unlike the standard method to change the interaction strength with unitary operations, we fully make use of non-unitary properties of projective measurements so that we can effectively turn the interaction on or off via feedforward. Our scheme is useful to generate two- or three-dimensional cluster states that are universal resources for fault-tolerant quantum computation with this scheme, and it provides an alternative way to realize a scalable quantum pro
@article{arxiv.1501.07712,
title = {Scalable quantum computation architecture using always-on Ising interactions via quantum feedforward},
author = {Takahiko Satoh and Yuichiro Matsuzaki and Kosuke Kakuyanagi and William J. Munro and Koichi Semba and Hiroshi Yamaguchi and Shiro Saito},
journal= {arXiv preprint arXiv:1501.07712},
year = {2020}
}