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Towards a Room-Temperature Spin Quantum Bus in Diamond via Electron Photoionization, Transport, and Capture

MetadataDetails
Publication Date2016-11-18
JournalPhysical Review X
AuthorsM. W. Doherty, C. A. Meriles, A. Alkauskas, Fedder H, M. J. Sellars
InstitutionsCentre for Quantum Computation and Communication Technology, City College of New York
Citations31

Diamond is a proven solid-state platform for spin-based quantum technology.
\nThe nitrogen-vacancy (NV) center in diamond has been used to realize
\nsmall-scale quantum information processing (QIP) and quantum sensing under
\nambient conditions. A major barrier in the development of large-scale QIP in
\ndiamond is the connection of NV spin registers by a quantum bus at room
\ntemperature. Given that diamond is expected to be an ideal spin transport
\nmaterial, the coherent transport of spin directly between the spin registers
\noffers a potential solution. Yet, there has been no demonstration of spin
\ntransport in diamond due to difficulties in achieving spin injection and
\ndetection via conventional methods. Here, we exploit detailed knowledge of the
\nparamagnetic defects in diamond to identify novel mechanisms to achieve spin
\ninjection, transport and detection in diamond at room temperature. Having
\nidentified these mechanisms, we explore how they may be combined to realise an
\non-chip spin quantum bus.