Stringent and efficient assessment of boson-sampling devices.

Stringent and efficient assessment of boson-sampling devices.
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对玻色子采样装置进行严格高效的评估

DOI:
10.1103/physrevlett.113.020502
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发表时间:
2014
影响因子:
8.6
通讯作者:
K. Mølmer
K. Mølmer
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
M. C. Tichy;K. Mayer;A. Buchleitner;K. Mølmer

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玻色子采样有可能通过实验来证伪丘奇-图灵的扩展命题。然而,玻色子采样的计算难度使得验证实验设备在超越经典计算机的情况下产生正确结果变得复杂。为了验证玻色子采样器,需要验证量子预测并排除在没有真正的多玻色子干扰的情况下产生这些预测的模型。我们证明了多玻色子传播的半经典模型再现了粗粒度的可观测量,这些可观测量被提议作为玻色子采样的见证。基于傅里叶矩阵的测试被证明可以伪造物理上合理的相干多玻色子传播替代方案。
Boson sampling holds the potential to experimentally falsify the extended Church-Turing thesis. The computational hardness of boson sampling, however, complicates the certification that an experimental device yields correct results in the regime in which it outmatches classical computers. To certify a boson sampler, one needs to verify quantum predictions and rule out models that yield these predictions without true many-boson interference. We show that a semiclassical model for many-boson propagation reproduces coarse-grained observables that are proposed as witnesses of boson sampling. A test based on Fourier matrices is demonstrated to falsify physically plausible alternatives to coherent many-boson propagation.
单光子模式失配对玻色子采样计算机可扩展性的充分条件
DOI: --
发表时间: 2013
期刊:
影响因子: --
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影响因子: 16.6
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