Information Storage and Retrieval in a Photon‐Spin System Via Shortcut Drivings.

Quantum‐information storage and retrieval in an optimized manner are of significance to information processing with composite systems. In this paper, an effective scheme is proposed for performing rapid information storage and retrieval between microwave photons and a nitrogen‐vacancy electron spin via shortcuts to adiabaticity. A qutrit of composite photon‐spin system interacts with two classical drivings. By modifying two original Rabi drivings, instead of directly adding an auxiliary counter‐diabatic interaction, information storage and retrieval can be rapidly performed with the optimized shortcut dynamics. Benefited from the shorter duration time, the shortcut‐based operation is more insensitive to decoherence effects than that of adiabatic counterpart. This strategy provides a promising avenue toward fast and robust information processing with solid‐state hybrid systems. [ABSTRACT FROM AUTHOR]