Entangling remote nuclear spins linked by a chromophore

Abstract

Molecular nanostructures may constitute the fabric of future quantum technologies, if their degrees of freedom can be fully harnessed. Ideally one might use nuclear spins as low-decoherence qubits and optical excitations for fast controllable interactions. Here, we present a method for entangling two nuclear spins through their mutual coupling to a transient optically-excited electron spin, and investigate its feasibility through density functional theory and experiments on a test molecule. From our calculations we identify the specific molecular properties that permit high entangling power gates under simple optical and microwave pulses; synthesis of such molecules is possible with established techniques.

References in corpus (4)

• Spin qubits with electrically gated polyoxometalate molecules
• Interqubit coupling mediated by a high-excitation-energy quantum object
• Environmental effects on electron spin relaxation in N@C60
• Entanglement of Remote Spins with Unequal Coupling to an Optically Active Mediator

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• Coherence protection in coupled quantum systems