Measuring a coherent superposition
N. V. Vitanov, B. W. Shore, R. G. Unanyan, K. Bergmann
Abstract
We propose a simple method for measuring the populations and the relative phase in a coherent superposition of two atomic states. The method is based on coupling the two states to a third common (excited) state by means of two laser pulses, and measuring the total fluorescence from the third state for several choices of the excitation pulses.
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