Postdoctoral Fellow Position for Rare-earth based devices for quantum-information processing

    • Application Deadline
      26 September 2023
      (application date has expired)
    • Job Salary
      £106,000 to £113,000 A$ plus 17% Superannuation
    • Website
    • Contact Name
      Prof. Sven Rogge

    The UNSW and the Centre for Quantum Computation and Communication Technology seek enthusiastic candidates for a PostDoc (level A, $106K - $113K plus 17% Superannuation) position in the field of rare-earth ions based experimental photonics for quantum information processing. Rare-earth ions, such as Erbium (Er), are now considered as promising candidates for quantum computation and communication applications due to their extraordinary long spin and optical coherence times at cryogenic temperatures [1]. Erbium is especially interesting as, additionally to narrow spin and optical linewidths and negligible nonradiative losses, Er ions emit photons at the telecommunication wavelength. Integrating single Er ions with Si-based photonic nanocavities can potentially allow realizing single photon sources that can be used for cluster state generation, a primary source for measurement-based quantum computing [2, 3].

    Your role
    You will work on integrating Er ions with photonic nanostructures. A near future result of this effort will be an array of sources of pure indistinguishable photons operating at the telecommunication wavelength. Er-based single photon sources will be used for quantum optics experiments relevant to optical quantum computing, i.e., cluster state generation [4, 5] and optical boson sampling [6]. The candidate will carry out clean room nanofabrication, spectroscopy, theory, and numerical modelling. This role will include nanofabrication of single photon emitters and detectors, characterization of these devices using SEM, AFM, excitation photoluminescence spectroscopy, conducting data analysis and independent writing of research publications.

    You will benefit from the world-recognized expertise on single ion-based quantum devices and quantum electronics. The candidate will have access to a range of unique methods developed at Rogge’s lab, i.e., a highly sensitive spectroscopy technique based on a sample on single photon detector approach. You will develop strong skills on low-temperature optical spectroscopy, device engineering and nanofabrication. Strong international collaborations (USA, Europe) are maintained with groups on experimental and theoretical sides.

    Enthusiastic PhD graduate, or equivalent, with knowledge in semiconductors, optics, quantum mechanics and condensed matter physics. Clean room experience is appreciated. Knowledge of equity and diversity principles.

    How to apply - deadline 26th of September 2023
    Further information: Prof. Sven Rogge ([email protected]) or visit
    Please apply

    [1] J. R. Everts, Phys. Rev. A 99, 063830 (2019).
    [2] R. Raussendorf and H. J. Briegel. Phys. Rev. Lett. 86, 5188–5191 (2001).
    [3] P. Walther et al. Nature 434, 169–176 (2005).
    [4] D. Istrati et al. Nat. Commun. 11, 1–8 (2020).
    [5] I. Schwartz et al. Science 354, 434–437 (2016).
    [6] J. C. Loredo et al. Rev. Lett. 118, 130503 (2017)

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