By analyzing the bit error rate, the results show that the major factor causing quantum bit errors is quantum noise.

对误比特率分析的结果表明，量子噪声是引起比特错误的主要因素。

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With displacement operator method the total quantum noise is obtained, and a quantum channel model with attenuation and noise is proposed.

用位移算符方法计算量子噪声的累加，同时建立了有衰减和噪声时的信道的量子模型。

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This paper deals with the effect of FM quantum noise of laser sources on the receiver performance in coherent fiber-optic communication systems.

本文分析了激光源FM量子噪声对数字光纤相干通信接收机性能的影响。

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Beck hopes to eventually use entire arrays of Josephson junctions to better measure quantum noise spectra in the terahertz region, noting that any anomaly there that cannot be explained by conventional physics could be a hint of dark energy.

FORBES: Dark Energy Camera Could Reshape Einstein Cosmology