• Advanced Photonics
  • Vol. 3, Issue 5, 050501 (2021)
Xiaosong Ma
Author Affiliations
  • Nanjing University, School of Physics, Nanjing, China
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    Jiuzhang 2.0 represents significant improvements, beyond the last year’s landmark.

    Quantum computing1 promises exponential speed-up in for such tasks as factorizing, simulating many-body quantum systems, and quantum machine learning. However, to achieve such computational speed-up is far from trivial. A universal quantum computer needs at least: (1) many qubits that can be individually coherently controlled; (2) many quantum gates/operations that can establish correlations among many qubits; and (3) fault-tolerance architecture that can correct the errors during computation, and hence output the correct answers. Each of these three requirements is highly demanding to realize.

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    Xiaosong Ma. Stronger quantum advantages with photons[J]. Advanced Photonics, 2021, 3(5): 050501
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    Category: News and Commentaries
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    Published Online: Nov. 1, 2021
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