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Teaching |
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Superconducting circuits with quantum defects for quantum information science, quantized flux for high-performance computing |
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In one semester, this course will cover advanced topics in applied superconductivity (SC) with a focus on devices and circuits. The course material is separated into 4 topics: Superconducting Material Properties, Radiation and Particle Detectors, Digital Applications, and Quantum Information Science (QIS). The course will be taught in 3 hours of instruction per week with classes held on Tuesdays and Thursdays. The recommended textbooks for the course are Principles of Superconductive Devices and Circuits by T. Van Duzer and C. Turner, and Introduction to Superconductivity by M. Tinkham. Notes from the class will be provided. The first half of the course will also cover superconducting material properties and particle detector topics. Josephson junctions and Superconducting Quantum Interference Devices (SQUIDs) will be taught in detail during this half since these are relevant to the latter topics. During the first half of the course, homework problems will be assigned weekly related to material presented in the class. In the second half of the course, the third and fourth topics will be covered: digital applications and QIS. Digital gates will be introduced along with pendulum and fluxon models for understanding them. Finally, the QIS topic will introduce many subjects, including the Hamiltonians of popular superconducting qubits and methods to understand them. During the second half of the course, students will be asked to write a report on a subject that the instructor approves. Material covered in the course: Superconducting Material Properties The London brothers and the London penetration depth The Josephson effect and a famous battle between two SC pioneers Silsbee critical current, vortices, and fluxoid quantization Radiation and Particle Detectors SQUIDs, resonators, and multiplexed readout Transition edge sensors and the Ginzburg-Landau theory Kinetic Inductance (KI), nanowire detectors, and quantum two-level noise Single Flux Quantum (SFQ) Digital Logic Rapid SFQ Digital Logic Adiabatic and reversible logic types Flip flops, SFQ logic gates, demultiplexers, and clocking Quantum Information Science Introduction to quantum algorithms Phase through fluxonium qubits Qubit gates and tomography |
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Kevin D. Osborn, Ph.D. Laboratory for Physical Sciences at the University of Maryland 8050 Greenmead Dr. College Park, MD 20740 osborn -at- lps -dot- umd -dot- edu |
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Fall 2023 Course Offering: Superconducting Devices and Circuits |