Quantum Dots for Quantum Information Processing: Controlling and Exploiting the Quantum Dot Environment

This thesis offers a comprehensive introduction to surface acoustic waves in the quantum regime. It addresses two of the most significant technological challenges in developing a scalable quantum information processor based on spins in quantum dots: (i) decoherence of the electronic spin qubit due to the surrounding nuclear spin bath, and (ii) long-range spin-spin coupling between remote qubits. Electron spins confined in quantum dots (QDs) are among the leading contenders for implementing quantum information processing. To this end, the author pursues novel strategies that turn the unavoidable coupling to the solid-state environment (in particular, nuclear spins and phonons) into a valuable asset rather than a liability.

List of contents

Introduction.- Superradiance-Like Electron Transport Through a Quantum Dot.- Nuclear Spin Dynamics in Double Quantum Dots.- Universal Quantum Transducers Based on Surface Acoustic Waves.- Outlook.

About the author

Martin Schuetz studied both Industrial Engineering and Physics at the Karlsruhe Institute for Technology, Michigan State University and ETH Zurich. He obtained a PhD in Physics in the group of Ignacio Cirac at the Max-Planck-Institute for Quantum Optics, where he is currently working as a postdoc.

Summary

This thesis offers a comprehensive introduction to surface acoustic waves in the quantum regime. It addresses two of the most significant technological challenges in developing a scalable quantum information processor based on spins in quantum dots: (i) decoherence of the electronic spin qubit due to the surrounding nuclear spin bath, and (ii) long-range spin-spin coupling between remote qubits. Electron spins confined in quantum dots (QDs) are among the leading contenders for implementing quantum information processing. To this end, the author pursues novel strategies that turn the unavoidable coupling to the solid-state environment (in particular, nuclear spins and phonons) into a valuable asset rather than a liability.

Product details

• Authors: Martin J A Schütz, Martin J. A. Schütz
• Publisher: Springer, Berlin
• Languages: English
• Product format: Paperback / Softback
• Released: 01.01.2018
• EAN: 9783319839721
• ISBN: 978-3-31-983972-1
• No. of pages: 199
• Dimensions: 155 mm x 12 mm x 235 mm
• Weight: 341 g
• Illustrations: XVII, 199 p. 51 illus., 8 illus. in color.
• Series: Springer Theses; Springer Theses
• Subjects: Natural sciences, medicine, IT, technology > Technology > Mechanical engineering, production engineering; B, Nanotechnology, Physics and Astronomy, Nanoscale Science and Technology, Nanostructures, Nanoscale science, Nanophysics, Nanoscience, Interfaces (Physical sciences), Surface and Interface Science, Thin Films, Surface and Interface and Thin Film, Thin films, Surfaces (Physics), Quantum computers, Spintronics, Quantum Information Technology, Spintronics