deletions | additions       diff --git a/subsection_Quadrature_Noise_The_motion__.tex b/subsection_Quadrature_Noise_The_motion__.tex  index dfde647..3690e95 100644  --- a/subsection_Quadrature_Noise_The_motion__.tex  +++ b/subsection_Quadrature_Noise_The_motion__.tex 
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\[f(t) = X(t) cos(\omega t) + Y(t) sin(\omega t)\]  Where $X(t)$ is the in-phase component, $Y(t)$ is the quadrature component and $\omega$ is the "carrier" frequency.  As in the case of the harmonic oscillator, it's impossible to exactly determine $X(t)$ and $Y(t)$ for a given $t$ - there's an amount of uncertainty that can be due to classical noise or quantum uncertainty relations. 
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