Fig. 2: Cavity length dependence of optimal momentum and Fisher information for an infinitely narrow momentum-width source. | npj Microgravity

Fig. 2: Cavity length dependence of optimal momentum and Fisher information for an infinitely narrow momentum-width source.

From: Theoretical investigation of an atomic Fabry Perot interferometer based acceleration sensor for microgravity environments

Fig. 2

Optimum particle momentum (a) and the Fisher information corresponding to the optimum particle momentum (b) as a function of the cavity length, in the case of an infinitely narrow momentum width source of atoms. For each cavity length there exists an optimum \({\tilde{k}}_{i}\) and it decreases with increasing cavity length. The optimum value of \({\tilde{k}}_{i}\) ranges from 0.06 to 0.004 k0, where k0 = 2π/(780nm). The maximum \({\tilde{F}}_{C}\) increases with increasing cavity length. Hence in this case, sensitivity to acceleration can be improved by increasing cavity length.

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