论文标题
量子场的自我引用的亚周期
Self-referenced subcycle metrology of quantum fields
论文作者
论文摘要
我们建议使用3阶非线性光学过程和同伴检测与局部振荡器（LO）场的组合组合，提出并分析了一种新的时间域方法，以用于量子电场的亚周期测量。该新方法可以通过按脉冲基础上的脉冲降低LO的射击噪声来分离本质上弱的量子噪声贡献。我们的方法与非线性的中心对称特征一起，为Terahertz和中红外量子场计量学开辟了新的机会。
We propose and analyze a new time-domain method for subcycle metrology of quantum electric fields using a combination of a 3rd order nonlinear optical process and homodyne detection with a local oscillator (LO) field. The new method enables isolation of intrinsically weak quantum noise contribution by subtraction of the shot noise of the LO on a pulse-by-pulse basis. Together with the centro-symmetric character of the nonlinearity, our method unlocks novel opportunities toward terahertz and mid-infrared quantum field metrologies.
