Comment on the ultimate single-ion laser-frequency standard

Abstract

Dehmelts proposal for an ultimate laser-frequency standard based on a single trapped ion is examined. Density-matrix calculations are developed for a double-resonance scheme which, under favorable circumstances, amplifies a highly forbidden and narrow electronic transition. The advantages of a pulsed excitation scheme are discussed, and the limitations of cw excitation are exposed. © 1986 The American Physical Society.