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Spin dynamical decoupling for generating macroscopic superpositions of a free-falling nanodiamond
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Wood, B. D., Bose, S. and Morley, G. W. (2022) Spin dynamical decoupling for generating macroscopic superpositions of a free-falling nanodiamond. Physical Review A, 105 (1). doi:10.1103/PhysRevA.105.012824 ISSN 2469-9926.
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Official URL: http://dx.doi.org/10.1103/PhysRevA.105.012824
Abstract
Levitated nanodiamonds containing negatively charged nitrogen-vacancy centers ( NV − ) have been proposed as a platform to generate macroscopic spatial superpositions. Requirements for this include having a long NV − spin coherence time, which necessitates formulating a dynamical decoupling strategy in which the regular spin flips do not cancel the growth of the superposition through the Stern-Gerlach effect in an inhomogeneous magnetic field. Here, we propose a scheme to place a 250 − n m -diameter diamond in a superposition with spatial separation of over 250 n m , while incorporating dynamical decoupling. We achieve this by letting a diamond fall for 2.4 m through a magnetic structure, including 1.13 m in an inhomogeneous region generated by magnetic teeth.
| Item Type: | Journal Article | |||||||||||||||
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| Subjects: | Q Science > QC Physics T Technology > TP Chemical technology |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||
| Library of Congress Subject Headings (LCSH): | Nanodiamonds , Quantum theory , Rotational motion , Quantum gravity | |||||||||||||||
| Journal or Publication Title: | Physical Review A | |||||||||||||||
| Publisher: | American Physical Society | |||||||||||||||
| ISSN: | 2469-9926 | |||||||||||||||
| Official Date: | 31 January 2022 | |||||||||||||||
| Dates: |
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| Volume: | 105 | |||||||||||||||
| Number: | 1 | |||||||||||||||
| Number of Pages: | 10 | |||||||||||||||
| DOI: | 10.1103/PhysRevA.105.012824 | |||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||
| Publication Status: | Published | |||||||||||||||
| Reuse Statement (publisher, data, author rights): | © 2022 American Physical Society | |||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||
| Copyright Holders: | American Physical Society | |||||||||||||||
| Date of first compliant deposit: | 28 March 2022 | |||||||||||||||
| Date of first compliant Open Access: | 30 March 2022 | |||||||||||||||
| RIOXX Funder/Project Grant: |
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