Quantum correlation in disordered spin systems: Applications to magnetic sensing
Name
Cappellaro-2009-Quantum correlation.pdf
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376.66 KB
Format
Adobe PDF
Checksum (MD5)
e0ec54eb5be896ec606906abf54abffd
Author(s)
Lukin, M. D.
Cappellaro, Paola
Date Issued
September 2009
Journal
Physical Review A
Publisher
American Physical Society
Citation
Cappellaro, P., and M. D. Lukin. “Quantum correlation in disordered spin systems: Applications to magnetic sensing.” Physical Review A 80.3 (2009): 032311. © 2009 The American Physical Society.
Version
Final published version
Abstract
We propose a strategy to generate a many-body entangled state in a collection of randomly placed, dipolarly coupled electronic spins in the solid state. By using coherent control to restrict the evolution into a suitable collective subspace, this method enables the preparation of GHZ-like and spin-squeezed states even for randomly positioned spins, while in addition protecting the entangled states against decoherence. We consider the application of this squeezing method to improve the sensitivity of nanoscale magnetometer based on nitrogen-vacancy spin qubits in diamond.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevA.80.032311
