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Measured Quantum Fourier Transform of 1024 Qubits on Fiber Optics

Akihisa Tomita·Kazuo Nakamura
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Abstract

Quantum Fourier transform (QFT) is a key function to realize quantum computers. A QFT followed by measurement was demonstrated on a simple circuit based on fiber-optics. The QFT was shown to be robust against imperfections in the rotation gate. Error probability was estimated to be 0.01 per qubit, which corresponded to error-free operation on 100 qubits. The error probability can be further reduced by taking the majority of the accumulated results. The reduction of error probability resulted in a successful QFT demonstration on 1024 qubits.

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Akihisa Tomita, Kazuo Nakamura. 2004-01-19. Measured Quantum Fourier Transform of 1024 Qubits on Fiber Optics. https://doi.org/10.1142/s0219749904000122

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