Please use this identifier to cite or link to this item:
Title: Quantum entanglement distribution using a magnetic field sensor
Authors: Schaffry, M.
Benjamin, S.C. 
Matsuzaki, Y.
Issue Date: 2012
Citation: Schaffry, M., Benjamin, S.C., Matsuzaki, Y. (2012). Quantum entanglement distribution using a magnetic field sensor. New Journal of Physics 14 : -. ScholarBank@NUS Repository.
Abstract: Sensors based on crystal defects, especially nitrogen vacancy (NV) centres in nanodiamond, can achieve detection of single magnetic moments. Here, we show that this exquisite control can be utilized to entangle remote electronic spins for applications in quantum computing; the mobile sensor provides a 'flying' qubit while the act of sensing the local field constitutes a two-qubit projective measurement. Thus, the NV centre mediates entanglement between an array of well-separated (and thus well-controlled) qubits. Our calculations establish that such a device would be remarkably robust against realistic issues such as dephasing, inaccurate timing and both positioning errors and multimodal vibrations in the sensor tip. Interestingly, the fact that this form of flying qubit is readily measurable allows one to convert certain classes of unknown errors into heralded failures, which are relatively easy to deal with using established quantum information processing techniques. We also provide calculations establishing the feasibility of performing a demonstrator experiment with a fixed sensor in the immediate future. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
Source Title: New Journal of Physics
ISSN: 13672630
DOI: 10.1088/1367-2630/14/2/023046
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Jan 21, 2019


checked on Jan 2, 2019

Page view(s)

checked on Sep 21, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.