Engineering coherent interactions in molecular nanomagnet dimers

Ardavan et al. chemically assembled coupled Cr${}_7$Ni molecular-spin dimers and used pulsed ESR to show that phase coherence survives while the inter-qubit interaction is tuned by molecular design.

Key Results

• Demonstrated coherent molecular-spin dimers with chemically tunable interactions.
• For dimer 1A, reported $T_2\approx 0.8\mu \text{s}$ and an interaction timescale $h/J\approx 77\text{ns}$.
• Established a route toward two-qubit molecular-spin operations without reporting a randomized-benchmarking gate fidelity.

Links

• Journal: npj Quantum Information
• arXiv: 1510.01694

Zoo Links

• molecular-qubit