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Proceedings Paper

Quantum register based on structured diamond waveguide with NV centers
Author(s): Alexander V. Tsukanov; Igor Yu. Kateev; Alexander A. Orlikovsky
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Paper Abstract

We propose a scheme of quantum information processing with NV-centers embedded inside diamond nanostructure. Single NV-center placed in the cavity plays role of an electron spin qubit which evolution is controlled by microwave pulses. Besides, it couples to the cavity field via optical photon exchange. In their turn, neighbor cavities are coupled to each other through the photon hopping to form a bus waveguide mode. This waveguide mode overlaps with all NVcenters. Entanglement between distant centers is organized by appropriate tuning of their optical frequency relative to the waveguide frequency via electrostatic control without lasers. We describe the controlled-Z operation that is by one order of magnitude faster than in off-resonant laser-assisted schemes proposed earlier. Spectral characteristics of the onedimensional chain of microdisks are calculated by means of numerical modeling, using the approach analogous to the tight-binding approximation in the solid-state physics. The data obtained allow to optimize the geometry of the microdisk array for the effective implementation of quantum operations.

Paper Details

Date Published: 3 January 2013
PDF: 13 pages
Proc. SPIE 8700, International Conference Micro- and Nano-Electronics 2012, 87001F (3 January 2013); doi: 10.1117/12.2017727
Show Author Affiliations
Alexander V. Tsukanov, Institute of Physics and Technology (Russian Federation)
Igor Yu. Kateev, Institute of Physics and Technology (Russian Federation)
Alexander A. Orlikovsky, Institute of Physics and Technology (Russian Federation)

Published in SPIE Proceedings Vol. 8700:
International Conference Micro- and Nano-Electronics 2012
Alexander A. Orlikovsky, Editor(s)

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