The speed-up of VLSI with the current technology will face a big problem caused by quantum effects in near future, and research on both new device technology and new computing models have been performed. Quantum computing is a new computing discipline based on the quantum physics and utilizing fundamentals of quantum mechanics. This new computing paradigm has been investigated since 1980's, and, in the latter half of 1990's its computing power outperforming that of the current computing model has been revealed. In this paper, trends in quantum computing are summarized with an outline of its model, and the importance of quantum computing science research is described.
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