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Tutorial EM08—Materials Science of Quantum Computing

Nov 26, 2017
12:30 PM - 04:00 PM
Hynes, Level 2, Room 210

Quantum computing promises to revolutionize information technology as we know it today by changing the physical nature of the fundamental unit of information.  However, the physical limitations to creating a quantum computer originate in our ability to manipulate and control the basic materials that comprise quantum computing devices. This tutorial will provide an introduction to the relevant applied physics and the related material structures and compositions needed to create elementary quantum computing devices.

1:30 pm – 2:30 pm
Part I: Christopher J.K. Richardson
Quantum Mechanics and Solid State Physics as Applicable to Gate-Based Fault Tolerant Quantum Computing

  • DiVincenzo criteria for quantum computing
  • Representation of quantum states on the Bloch sphere
  • Encoding quantum information onto spin and pseudo-spin states
  • Magnetic resonant spectroscopy as related to qubit manipulation
  • Measurements of lifetime and decoherence

2:30 pm – 3:00 pm   BREAK

3:00 pm – 4:00 pm
Part II: Michael Hatridge
Explore Connections to Actual Material Structures, Their Design, Selection Criteria and Means of Fabrication for Existing Quantum Information Devices

  • Ion trap qubits
  • Silicon germanium donor qubits
  • Silicon germanium quantum dot qubits
  • Superconducting quantum circuit qubits
  • Topological qubits
  • Defect qubits

4:00 pm – 5:00 pm
Part III: Vincenzo Lordi
Survey Simulations of Materials that Have Been Applied to Help Understand Limitations and Opportunities for These Systems

  • Brief review of relevant material and device simulation approaches and needs
  • Successes and limitations of continuum methods
  • Challenges and successes of electronic structure calculations related to quantum information materials
  • Role of molecular dynamics and related structural simulations of quantum information materials
  • Examples related to superconducting, ion trap, defect and silicon germanium qubits will be presented

Instructors

  • Christopher J.K. Richardson, University of Maryland
  • Michael Hatridge, University of Pittsburgh
  • Vincenzo Lordi, Lawrence Livermore National Laboratory