deletions | additions       diff --git a/Demostration_of_the_effect_in__.tex b/Demostration_of_the_effect_in__.tex  index 418aa35..9a3ad89 100644  --- a/Demostration_of_the_effect_in__.tex  +++ b/Demostration_of_the_effect_in__.tex 
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Demostration of the effect in optical resonators is difficult due to losses - some gain mechanism must be added to the system for the effect to be noticeable, but since different modes experience different gain, one mode will always dominate and the beats won't be noticeable.  Parametric gain offers a way to avoid this problem altogether, since it can only amplify frequency pairs frequency-pairs  that satisfy the conditions above, the signal in each loop must be squeezed. This can only be achieved by a linear combination of the two modes. \[A(t) = A(0)cos(\Omega t)\]  \[B(t) = -B(0)sin(\Omega t)\]