Measured Quantum Fourier Transform of 1024 Qubits on Fiber Optics

Details Measured Quantum Fourier Transform of 1024 Qubits on Fiber Optics Measured Quantum Fourier Transform of 1024 Qubits on Fiber Optics

2004-01-19

arxiv.org/abs/quant-ph/0401100v1

Int. J. Quantum Information, vol. 2 pp.119-131 (2004)

Physics

Quantum Physics

15 pages, 6 figures, submitted to EQIS 2003 Special issue, Int. J. Quantum Information

Scientific paper

10.1142/S0219749904000122

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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