Tools for Persistent-Current Qubits

Abstract

The project concentrates on the design, fabrication, implementation and operation of solids state quantum logical elements and circuits for the realization of quantum computers. It utilizes qubits based on circulating persistent currents in superconducting loops containing (three) Josephson junctions. This Final Report presents the major achievements obtained during the project, highlighting the progress from the initial spectroscopy and first Rabi results on a single qubit to the most recent finding of controlled quantum dynamics of multi- element circuits, controlled-invasiveness state detection, coupled 2-qubit systems, and large increase of coherence by proper circuit layout and parameter control. It briefly puts these into perspective with respect to the contribution of Persistent Current Qubits to the development of quantum information processing based on solid state devices.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2004
Accession Number
ADA427479

Entities

People

  • C. Harmans
  • J. E. Mooij

Organizations

  • Delft University of Technology

Tags

DTIC Thesaurus Topics

  • Computers
  • Detection
  • Detectors
  • Dynamics
  • Electromagnetic Environments
  • Electron Beam Lithography
  • Fabrication
  • Information Processing
  • Josephson Junctions
  • Magnetic Detectors
  • Magnetometers
  • Quantum Circuits
  • Quantum Computers
  • Quantum Computing
  • Quantum Information
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Integrated Circuit Design and Technology.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Systems Analysis and Design

Technology Areas

  • Quantum Computing
  • Quantum Science - Quantum Dots