Determination of Sum Squeezing of the Field Amplitude in Frequency Upconversion Process

Under brief contact time, sum squeezing of the field amplitude is investigated in nondegenerate and degenerate frequency upconversion processes. The Heisenberg uncertainty relation is not violated when the quantum fluctuation (amplitude noise or phase noise) in one variable is lowered below the symmetric limit at the expense of increased quantum fluctuation in the conjugate variable.…
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June 7, 2021 0