Scalable quantum computation architecture using always-on Ising interactions via quantum feedforward

Takahiko Satoh; Yuichiro Matsuzaki; Kosuke Kakuyanagi; William J. Munro; Koichi Semba; Hiroshi Yamaguchi; Shiro Saito

doi:10.1103/PhysRevA.91.052329

Scalable quantum computation architecture using always-on Ising interactions via quantum feedforward

Takahiko Satoh, Yuichiro Matsuzaki, Kosuke Kakuyanagi, William J. Munro, Koichi Semba, Hiroshi Yamaguchi, Shiro Saito

Research output: Contribution to journal › Article › peer-review

Abstract

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 nonunitary properties of projective measurements so that we can effectively turn the interaction on or off via feedforward. Our scheme is useful for generating 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 processor.

Original language	English
Article number	052329
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	91
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevA.91.052329
Publication status	Published - 2015 May 28
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.91.052329

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AU - Semba, Koichi

AU - Yamaguchi, Hiroshi

AU - Saito, Shiro

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Scalable quantum computation architecture using always-on Ising interactions via quantum feedforward

Abstract

ASJC Scopus subject areas

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