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

✍ Scribed by Martin J. A. Schütz (auth.)

• Publisher: Springer International Publishing
• Year: 2017
• Tongue: English
• Leaves: 214
• Series: Springer Theses
• Edition: 1
• Category: Library

✦ Synopsis

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.

✦ Table of Contents

Front Matter....Pages i-xvii
Introduction....Pages 1-26
Superradiance-like Electron Transport Through a Quantum Dot....Pages 27-64
Nuclear Spin Dynamics in Double Quantum Dots: Multi-stability, Dynamical Polarization, Criticality and Entanglement....Pages 65-141
Universal Quantum Transducers Based on Surface Acoustic Waves....Pages 143-196
Outlook....Pages 197-199

✦ Subjects

Quantum Information Technology, Spintronics;Surface and Interface Science, Thin Films;Nanotechnology;Nanoscale Science and Technology