T2 Spin in Semiconductors

Quantum Spintronics


Rates

Registration Fee per Tutorial:

  • Meeting Attendee (Virtual or In-Person): $140
  • Students: $75
  • Non-meeting Attendee: $150

Who Should Attend?

Graduate students, post-docs, and other scientists interested in learning about the exciting new area of quantum spintronics and its implications for quantum technologies. The tutorial talks will be very pedagogical, describing the theoretical foundations and tools of the field, the techniques for growth and fabrication of quantum spintronic devices, their optical, magnetic and electronic characterization, and quantum information applications. Current activities and open questions will be featured.

Tutorial Description

Quantum spintronics is an emerging field of spin coherence and spin correlations, from low temperature to room temperature, and how they affect a wide range of properties, including spin dynamics and light emission from color centers in solids, organic magnetism, spin-dependent transport in tunnel junctions, biological sensing of magnetic fields and key components of quantum information science (quantum transduction, entangling gates for spin systems, spin-photon interfaces). By relying on spin coherence and spin correlations, room-temperature quantum spintronic systems can be much more sensitive to external perturbations than sensors that must be very near thermal equilibrium. Applications include sensing of magnetic fields in biological systems (e.g. color centers in diamond and other wide-band-gap semiconductors and insulators), control of light emission intensity from organic light emitting diodes (e.g. thermally-activated delayed fluorescence), spin injection, spin dynamics, and coherent optical interactions with single spins (color-center photonics). Highly sensitive room-temperature spin systems also feature prominently in proposals for very low power electronic logic. Spin-photon interfaces at low temperatures allow the transduction of quantum information from optical to microwave frequencies, an essential element for connecting photonic and superconducting quantum information. And quantum-coherent spin systems may form the basis for spin-based qubits in next-generation quantum information processors. The tutorial will provide an introduction to the materials and operating regimes that tend to exhibit exceptional spin coherence and spin correlations, the methods of calculating and measuring these properties, the areas of application and the critical open questions in the field.

Topics

  • Theory: Spin dynamics and transport (density matrix and stochastic Liouville equations, master equations), color-center properties (density functional theory, symmetry analyses), ranging from simple (analytic) models and calculations to state-of-the-art numerics. These will include current systems of intense investigation (e.g. light-element spin centers in wide-gap semiconductors) and those of great future promise (e.g. rare-earth spin centers in oxides)
  • Growth and Fabrication: Organic spin-coherent molecules and magnets, diamond and silicon carbide growth and color center control, color-center photonics including the integration of spin centers into integrated photonic frameworks, growth of novel materials such as rare-earth host oxides.
  • Characterization: Optical and coherent RF probes of spin dynamics in color centers, organic magnetic materials, and photonic devices and their applications to quantum transduction and quantum information processing.

Organizer

  • Michael E. Flatté, University of Iowa

Instructors

  • David D. Awschalom, U. Chicago and Argonne National Lab
  • Michael E. Flatté, U. Iowa and Eindhoven U. of Technology
  • Evelyn Hu, Harvard University
  • Ezekiel Johnston-Halperin, Ohio State University