Symposium EM1—Materials Issues for Quantum Computing

Quantum computing provides strong motivation to extend understanding of fabrication and characterization of materials that can be manipulated deterministically to create a controllable quantum state. Improvements in materials fabrication, characterization, and simulation are needed to reach the stringent purity and atomic order requirements of quantum computing materials.

While there is a rich history of quantum computing research in the physics community, there are clear opportunities for materials science to impact current state-of-the-art quantum computing research. A variety of technical areas such as semiconductor, superconductor, and ion trap technologies are experiencing device limitations directly linked to materials performance. Other emerging technologies such as Majorana Fermion and topological insulator based qubits are at the brink of being demonstrated largely through advances in materials fabrication techniques.

The goal of this symposium is to provide a forum to unite researchers who are engaged in the study of materials research across all quantum computing technologies, and to elucidate common techniques and themes that are being applied to the basic functionality of materials used in quantum computing and their impact on qubit performance.

Topics will include:

  • Advances to, or novel characterization methods including for example, S/TEM, atom probe tomography, scan probe microscopy, x-ray diffraction, and X-ray photoelectron spectroscopy applied to quantum computing materials and devices.
  • Correlations and connections between room temperature characterization and cryogenic lifetimes and coherence times of quantum computing technologies.
  • Ab-initio simulations of materials structure and microscopic origins of noise important to quantum computing technologies.
  • Advances and developments of meso-scale approaches and continuum models that simulate materials influence on qubit performance.
  • A tutorial complementing this symposium is tentatively planned.

Invited Speakers:

  • Susan Coppersmith (University of Wisconsin-Madison, USA)
  • Dustin Hite (National Institute of Standards and Technology, USA)
  • Fedor Jelezko (University of Ulm, Germany)
  • Peter Krogstrup (University of Copenhagen, Denmark)
  • Robert McDermott (University of Wisconsin-Madison, USA)
  • Jan Meijer (University of Leipzig, Germany)
  • Andrea Morello (University of New South Wales, Australia)
  • Jason Petta (Princeton University, USA)
  • Michelle Simmons (University of New South Wales, Australia)
  • Chris Van de Walle (University of California, Santa Barbara, USA)

Symposium Organizers

Ilke Arslan
Pacific Northwest National Laboratory
Physical Sciences Division
509-372-4603, ilke.arslan@pnnl.gov

Vincenzo Lordi
Lawrence Livermore National Laboratory
Quantum Simulations Group, Materials Science Division
925-423-2755, lordi2@llnl.gov

Jeffrey McCallum
University of Melbourne
School of Physics

Chris Richardson
Laboratory for Physical Sciences