Efficient quantum computation in a network with probabilistic gates and logical encoding

J. Borregaard; A. S. Sørensen; J. I. Cirac; M. D. Lukin

doi:10.1103/physreva.95.042312

Efficient quantum computation in a network with probabilistic gates and logical encoding

J. Borregaard, A. S. Sørensen, J. I. Cirac, M. D. Lukin

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5 Citations (Scopus)

Abstract

An approach to efficient quantum computation with probabilistic gates is proposed and analyzed in both a local and nonlocal setting. It combines heralded gates previously studied for atom or atomlike qubits with logical encoding from linear optical quantum computation in order to perform high-fidelity quantum gates across a quantum network. The error-detecting properties of the heralded operations ensure high fidelity while the encoding makes it possible to correct for failed attempts such that deterministic and high-quality gates can be achieved. Importantly, this is robust to photon loss, which is typically the main obstacle to photonic-based quantum information processing. Overall this approach opens a path toward quantum networks with atomic nodes and photonic links.

Original language	English
Article number	042312
Journal	Physical Review A
Volume	95
Issue number	4
ISSN	2469-9926
DOIs	https://doi.org/10.1103/physreva.95.042312
Publication status	Published - 11 Apr 2017

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PhysRevA.95.042312Final published version, 235 KB

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title = "Efficient quantum computation in a network with probabilistic gates and logical encoding",

abstract = "An approach to efficient quantum computation with probabilistic gates is proposed and analyzed in both a local and nonlocal setting. It combines heralded gates previously studied for atom or atomlike qubits with logical encoding from linear optical quantum computation in order to perform high-fidelity quantum gates across a quantum network. The error-detecting properties of the heralded operations ensure high fidelity while the encoding makes it possible to correct for failed attempts such that deterministic and high-quality gates can be achieved. Importantly, this is robust to photon loss, which is typically the main obstacle to photonic-based quantum information processing. Overall this approach opens a path toward quantum networks with atomic nodes and photonic links.",

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AU - Borregaard, J.

AU - Sørensen, A. S.

AU - Cirac, J. I.

AU - Lukin, M. D.

PY - 2017/4/11

Y1 - 2017/4/11

N2 - An approach to efficient quantum computation with probabilistic gates is proposed and analyzed in both a local and nonlocal setting. It combines heralded gates previously studied for atom or atomlike qubits with logical encoding from linear optical quantum computation in order to perform high-fidelity quantum gates across a quantum network. The error-detecting properties of the heralded operations ensure high fidelity while the encoding makes it possible to correct for failed attempts such that deterministic and high-quality gates can be achieved. Importantly, this is robust to photon loss, which is typically the main obstacle to photonic-based quantum information processing. Overall this approach opens a path toward quantum networks with atomic nodes and photonic links.

AB - An approach to efficient quantum computation with probabilistic gates is proposed and analyzed in both a local and nonlocal setting. It combines heralded gates previously studied for atom or atomlike qubits with logical encoding from linear optical quantum computation in order to perform high-fidelity quantum gates across a quantum network. The error-detecting properties of the heralded operations ensure high fidelity while the encoding makes it possible to correct for failed attempts such that deterministic and high-quality gates can be achieved. Importantly, this is robust to photon loss, which is typically the main obstacle to photonic-based quantum information processing. Overall this approach opens a path toward quantum networks with atomic nodes and photonic links.

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Efficient quantum computation in a network with probabilistic gates and logical encoding

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