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Quantum Computing Systems: A Brief Overview

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Abstract

A classical simulation of quantum systems demands enormous computational resources. The dimension of underlying Hilbert space scales exponentially with the number of participating elements (N), requiring a 22N size of calculation matrix for a unitary operation, for example, 2100 ≈ 1030 for only N = 50. With the increase of N, the first obstacle to encounter is in fact the deficiency of computer memories. A straightforward resolution is to use a quantum computer, a calculating device that operates with the principle of quantum mechanics. During the last twenty years, quantum computing once considered as theoretical exercise has become an important field of research in modern physics. At the forefront of quantum information technology, quantum computing has emerged as a new engineering field with broad interest not only in physics but also in computer science, electronics engineering, and mathematics.

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Acknowledgments

This research was supported by Samsung Science and Technology Foundation [SSTF-BA1301-12].

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Authors and Affiliations

  1. Thailand Center of Excellence in Physics, Commission on Higher Education, Bangkok, 10400, Thailand

    Waranont Anukool

  2. Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand

    Waranont Anukool

  3. Centre for Cold Matter, Blackett Laboratory, Imperial College London, London, SW7 2AZ, UK

    Jongseok Lim

  4. Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Korea

    Yunheung Song & Jaewook Ahn

Authors
  1. Waranont Anukool
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  2. Jongseok Lim
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  3. Yunheung Song
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  4. Jaewook Ahn
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Corresponding author

Correspondence to Jaewook Ahn.

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Anukool, W., Lim, J., Song, Y. et al. Quantum Computing Systems: A Brief Overview. J. Korean Phys. Soc. 73, 841–845 (2018). https://doi.org/10.3938/jkps.73.841

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  • DOI: https://doi.org/10.3938/jkps.73.841

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