PhD Title: Magnetic levitation of nanodiamonds containing nitrogen vacancy centres towards fundamental tests of quantum mechanics
Outline: Single negatively charged nitrogen vacancy (NV-) centres in diamond have isolated electronic and nuclear spins that can store quantum information at room temperature for over one second. Using a magneto-gravitational trap to levitate nanodiamonds it is theoretically suggested that, once cooled, the nanodiamonds could be placed into a superposition of spatial states. The long-term goal is that this method will test the limits of macroscopicity for a spatial superposition state.
PhD Supervisor: Gavin Morley
Sponsor: Engineering and physical sciences research council (EPSRC)
- J. E. March, B. D. Wood, C. J. Stephen, S. Mandal, A. M. Edmonds, D. J. Twitchen, M. L. Markham, O. A. Williams, and G. W. Morley, Nanodiamonds with the optimal nitrogen concentration for quantum sensing, arXiv:2301.10188 (2023) https://doi.org/10.48550/arXiv.2301.10188Link opens in a new window.
- B. D. Wood, G. A. Stimpson, J. E. March, Y. N. D. Lekhai, C. J. Stephen, B. L. Green, A. C. Frangeskou, L. Ginés, S. Mandal, O. A. Williams, and G. W. Morley, Long spin coherence times of nitrogen vacancy centres in milled nanodiamonds, Phys. Rev. B 105, 205401 (2022) https://link.aps.org/doi/10.1103/PhysRevB.105.205401Link opens in a new window.
- B. D. Wood, S. Bose, and G. W. Morley, Spin dynamical decoupling for generating macroscopic superpositions of a free-falling nanodiamond, Phys. Rev. A 105, 012824 (2022) https://link.aps.org/doi/10.1103/PhysRevA.105.012824Link opens in a new window.
- B. D. Wood, and G. W. Morley, Towards a test of quantum gravity with a levitated nanodiamond containing a spin, Proc. SPIE 11881 Quantum Technology: Driving Commercialisation of an Enabling Science II (2021) https://doi.org/10.1117/12.2601348Link opens in a new window.
Conferences and Seminars
Poster: "Magnetic Levitation of Nanodiamonds for Creating Macroscopic Spatial Superpositions", Inaugural LeviNet Conference, London, 6th - 8th September 2022
Presentation: "Maximising coherence times of nitrogen vacancy centres in nanodiamonds for proposed macroscopic superposition generation experiments", 72nd De Beers Diamond Conference, 4th - 7th July 2022
Poster: "Towards Macroscopic Spatial Superposition of Nanodiamonds", Quantum Engineering of Levitated Systems, Benasque, 24th - 30th April 2022
Poster: "Towards Macroscopic Spatial Superposition of Nanodiamonds", 71st De Beers Diamond Conference, 6th - 8th July 2021
Poster: "Towards Macroscopic Spatial Superposition of Nanodiamonds", UniKORN poster session, 16th June 2021
Presentation: "Towards Macroscopic Spatial Superposition of Nanodiamonds", UniKORN seminar series - early career researcher talk, 17th March 2021. Youtube link: https://www.youtube.com/watch?v=1Uv6hEnyZtA
Poster: "Towards testing mesoscopic superposition using levitated nanodiamonds", Photonics Online Meetup (POM), June 2020
2019 - Present: PhD Student, University of Warwick
2014 - 2019: Master of Physics (MPhys), University of Oxford
Department of Physics,
University of Warwick,
ben dot d dot wood at warwick dot ac dot uk
Office: Millburn House, G25