A Multi-Josephson Junction Qubit

Abstract

We have designed a persistent supercurrent multi-Josephson junction (JJ) qubit whose circuit is based on a flattened JJ triangular prism. The Schroedinger equation for the 1D constrained system is equivalent to the Whittaker Hill equation, for which exact solutions have been found [1]. Symmetric or antisymmetric coupling of the qubit to an external magnetic field, will excite only the corresponding symmetric or antisymmetric terms in the Hamiltonian. This specificity allows coupling to a system bus comprised of an LC resonant loop. We indicate how separate buses might be coupled into a larger branching network.

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Document Details

Document Type
Technical Report
Publication Date
Jun 25, 2002
Accession Number
ADA459930

Entities

People

  • Stanford P. Yukon

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Computer Programs
  • Couplings
  • Department Of Defense
  • Detectors
  • Electromagnetic Scattering
  • Electronic Mail
  • Equations
  • Excitation
  • Frequency
  • Josephson Junctions
  • Magnetic Fields
  • Quantum Bits
  • Quantum Computing
  • Scientific Research
  • Triangles

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Microwave Engineering.
  • Superconducting Magnet Technology

Technology Areas

  • Quantum Science - Quantum Dots