Efficient simulation scheme for a class of quantum optics experiments with non-negative Wigner representation
Efficient simulation scheme for a class of quantum optics experiments with non-negative Wigner representation
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DOI：
10.1088/1367-2630/15/1/013037
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发表时间：
2012-10
影响因子：
3.3
通讯作者：
Victor Veitch;N. Wiebe;C. Ferrie;J. Emerson
中科院分区：
文献类型：
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作者：
Victor Veitch;N. Wiebe;C. Ferrie;J. Emerson
我们提供了一个方案，有效地模拟了广泛的一类量子光学实验。我们的有效模拟扩展了连续变量Gottesman-Knill定理到一大类非高斯混合态，从而证明这些非高斯态不是指数量子加速的有利资源。我们的研究结果还提供了一个操作动机的解释消极的非经典。我们将我们的方案应用于噪声单光子加热态的情况，表明这类允许具有正Wigner函数但负P函数的态，这些态对于量子计算是无用的资源态。
We provide a scheme for efficient simulation of a broad class of quantum optics experiments. Our efficient simulation extends the continuous variable Gottesman–Knill theorem to a large class of non-Gaussian mixed states, thereby demonstrating that these non-Gaussian states are not an enabling resource for exponential quantum speed-up. Our results also provide an operationally motivated interpretation of negativity as non-classicality. We apply our scheme to the case of noisy single-photon-added-thermal-states to show that this class admits states with positive Wigner function but negative P-function that are not useful resource states for quantum computation.