Atom Interferometer Gates Realization: An Optimal Quantum Control Method

Abstract Atom Interferometer has two quantum unitary gates that must be realized for quantum sensing purposes such as atomic gravimeter and atomic interferometer gyroscope. An optimal cost function which defines the distance between two unitary operators is defined and based on it, general adaptive (GADA) algorithms for optimization based quantum control are innovated to realize the atomic mirror and atomic beam-splitter gates. For the realization of those atom interferometer gates, we used optimal quantum control. We obtained gate fidelities of 0.9980 and 0.9998 for the mirror and the beam-splitter gates, respectively. In this research, a two-level atom system with clock transitions 1S0 ↔ 3P0 of strontium(87Sr) atom was employed.