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Showing 1–7 of 7 results
Advanced filters: Author: Sankar Das Sarma Clear advanced filters
  • Majorana zero modes are emergent excitations in topological superconductors. This Perspective introduces the physics of these modes, recaps the recent history of the experimental search for them and discusses the future prognosis for success.

    • Sankar Das Sarma
    Reviews
    Nature Physics
    Volume: 19, P: 165-170
  • The unusual synergy between magnetism and semiconductivity in the ferromagnetic semiconductor GaMnAs makes it an attractive material for 'spintronics'. Reports of a new giant switching effect lend it an even greater allure.

    • Sankar Das Sarma
    News & Views
    Nature Materials
    Volume: 2, P: 292-294
  • Gate-defined quantum dots are a promising candidate system for realizing scalable, coupled qubit systems and serving as a fundamental building block for quantum computers. However, present-day quantum dot devices suffer from imperfections that must be accounted for, which hinders the characterization, tuning, and operation process. Moreover, with an increasing number of quantum dot qubits, the relevant parameter space grows sufficiently to make heuristic control infeasible. Thus, it is imperative that reliable and scalable autonomous tuning approaches are developed. This meeting report outlines current challenges in automating quantum dot device tuning and operation with a particular focus on datasets, benchmarking, and standardization. We also present insights and ideas put forward by the quantum dot community on how to overcome them. We aim to provide guidance and inspiration to researchers invested in automation efforts.

    • Justyna P. Zwolak
    • Jacob M. Taylor
    • Brian Weber
    News & ViewsOpen Access
    npj Quantum Information
    Volume: 10, P: 1-8