Entangling remote nuclear spins linked by a chromophore.

Entangling remote nuclear spins linked by a chromophore.

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 tw...

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Bibliographic Details
Main Authors: Schaffry, M, Filidou, V, Karlen, S, Gauger, E, Benjamin, S, Anderson, H, Ardavan, A, Briggs, G, Maeda, K, Henbest, K, Giustino, F, Morton, J, Lovett, B
Format: Journal article
Language:English
Published: 2010
Description
Summary: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.

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