Fundamentals of Quantum Technology

By Thomas E Roth

Purdue University

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This set of lecture notes was prepared for a single-semester junior-level course on the fundamentals of quantum technology offered in the Elmore Family School of Electrical and Computer Engineering at Purdue University. The course is primarily intended to introduce engineering students who have completed courses in linear algebra, differential equations, and basic electrical circuits but with no background in quantum physics to the fundamental concepts of quantum physics needed to prepare engineers to work on the development of quantum information technologies or pursue more advanced studies in this field. Focus is placed on developing an understanding of the basic behavior of quantum systems, the implications of which are discussed in the context of the popular experimental platform of quantized circuits where possible. Topics covered include the fundamentals of the Schrödinger equation and wavefunctions, the general mathematical framework of quantum mechanics, the use of approximate methods for analyzing quantum systems, the quantized interactions between (artificial) atoms and linear circuits, and the density matrix. The course also provides an introduction to revolutionary quantum information technologies such as quantum communication systems, quantum computers, and quantum sensing systems.


Thomas E. Roth Thomas E. Roth is an Assistant Professor in the Elmore Family School of Electrical and Computer Engineering. He received all his degrees in electrical and computer engineering, with the B.S. degrees from Missouri University of Science and Technology and the M.S. and Ph.D degrees from the University of Illinois at Urbana-Champaign. Prior to joining Purdue, he was a Senior Member of the Technical Staff at Sandia National Laboratories in the Radar Electromagnetics & Sensor Technologies department where he was named a 2019 Up & Coming Innovator. He is the recipient of Young Scientist Awards at the 2023 Photonics & Electromagnetics Research Symposium and the URSI International Symposium on Electromagnetic Theory 2023 (1st place), a recipient of the 2023 IEEE Ulrich L. Rohde Innovative Conference Paper Award on Computational Techniques in Electromagnetics, as well as the 2023 Ruth and Joel Spira Outstanding Teacher Award at Purdue University. His research focuses on multiscale and multiphysics computational electromagnetics techniques, particularly for analyzing and designing quantum information processing devices.

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  • Thomas E Roth (2024), "Fundamentals of Quantum Technology,"

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