Models of reduced-noise, probabilistic linear amplifiers
Models of reduced-noise, probabilistic linear amplifiers
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DOI：
10.1103/physreva.93.052310
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发表时间：
2016-05-05
影响因子：
2.9
通讯作者：
Caves, Carlton M.
中科院分区：
文献类型：
--
作者：
Combes, Joshua;Walk, Nathan;Caves, Carlton M.
我们构造了一个放大器，它介于一个非确定性的、完美的线性放大器和一个确定性的、理想的线性放大器之间，并超越了非理想的线性放大器。该结构包括级联一个具有幅度增益g（1）的完美线性放大器和一个具有增益g（2）的（可能）非理想线性放大器。关于正常有序矩，该器件具有输出噪声mu（2）（G（2）- 1），其中G = g（1）g（2）是总幅度增益，mu（2）是噪声参数。当mu（2）>= 1时，我们的器件实现了理想（mu（2）= 1）和非理想（mu（2）> 1）线性放大器。当0
We construct an amplifier that interpolates between a nondeterministic, immaculate linear amplifier and a deterministic, ideal linear amplifier and beyond to nonideal linear amplifiers. The construction involves cascading an immaculate linear amplifier that has amplitude gain g(1) with a (possibly) nonideal linear amplifier that has gain g(2). With respect to normally ordered moments, the device has output noise mu(2)(G(2) - 1) where G = g(1)g(2) is the overall amplitude gain and mu(2) is a noise parameter. When mu(2) >= 1, our devices realize ideal (mu(2) = 1) and nonideal (mu(2) > 1) linear amplifiers. When 0