2013/01/31 by Andreas Albrecht, Guy Koplovitz, Alex Retzker +8 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Computer science #Diamond #Diamond and Carbon-based Materials Research #Force Microscopy Techniques and Applications #Ion-surface interactions and analysis #Materials science #Nanotechnology #Open quantum system #Physics #Quantum #Quantum computer #Quantum decoherence #Quantum mechanics #Quantum network #Quantum sensor #Quantum technology #Scalability #cond-mat.mes-hall #quant-ph
paper · pdf · doi:10.1088/1367-2630/16/9/093002
published as New J. Phys. 16 (2014) 093002 · 7 pages, 4 figures and Supplement (28 pages, 13 figures)
arxiv created 2013/08/30 · openalex publication_date 2014/09/04 · arxiv updated 2014/09/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The realization of scalable arrangements of nitrogen vacancy (NV) centers in diamond remains a key challenge on the way towards efficient quantum information processing, quantum simulation and quantum sensing applications. Although technologies based on implanting NV-centers in bulk diamond crystals or hybrid device approaches have been developed, they are limited by the achievable spatial resolution and by the intricate technological complexities involved in achieving scalability. We propose and demonstrate a novel approach for creating an arrangement of NV-centers, based on the self-assembling capabilities of biological systems and their beneficial nanometer spatial resolution. Here, a self-assembled protein structure serves as a structural scaffold for surface functionalized nanodiamonds, in this way allowing for the controlled creation of NV-structures on the nanoscale and providing a new avenue towards bridging the bio–nano interface. One-, two- as well as three-dimensional structures are within the scope of biological structural assembling techniques. We realized experimentally the formation of regular structures by interconnecting nanodiamonds using biological protein scaffolds. Based on the achievable NV-center distances of 11 nm, we evaluate the expected dipolar coupling interaction with neighboring NV-centers as well as the expected decoherence time. Moreover, by exploiting these couplings, we provide a detailed theoretical analysis on the viability of multiqubit quantum operations, suggest the possibility of individual addressing based on the random distribution of the NV intrinsic symmetry axes and address the challenges posed by decoherence and imperfect couplings. We then demonstrate in the last part that our scheme allows for the high-fidelity creation of entanglement, cluster states and quantum simulation applications.