Entangling Remote Nuclear Spins Linked by a Chromophore

M. Schaffry*, V. Filidou, S. D. Karlen, E. M. Gauger, S. C. Benjamin, H. L. Anderson, A. Ardavan, G. A. D. Briggs, K. Maeda, K. B. Henbest, F. Giustino, J. J. L. Morton, B. W. Lovett

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

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.

Original languageEnglish
Article number200501
Number of pages4
JournalPhysical Review Letters
Volume104
Issue number20
DOIs
Publication statusPublished - 21 May 2010

Keywords

  • Time-resolved EPR
  • Excited triplet
  • Double-resonance
  • Fullerene C-60
  • Pulsed endor
  • State
  • Spectroscopy
  • Molecules
  • Qubits
  • GHZ

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