Initial state preparation and stability in narrow band-gap semiconductor qubits

M. J. Gilbert, R. Akis, D. K. Ferry

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Solid state quantum computing has been an area of intense research over the past few years. In most semiconductor implementations, III-V materials have been used in order to exploit their comparatively long mean-free paths and phase coherent times. While most of the attention has been focused on the different possible implementations of gates necessary for computation, little effort has been made to examine the preparation and stability of the initial state of these semiconductor qubits. In this paper, we examine initial state preparation and stability in coupled waveguide qubits formed in several III-V semiconductor hetrostructures. We examine the sensitivity of the initial state to variations in the coupling length between the waveguides, material disorder introduced through mean-free path approximations, and through introduction of phase coherent times.

Original languageEnglish (US)
Title of host publication2003 Nanotechnology Conference and Trade Show - Nanotech 2003
EditorsM. Laudon, B. Romanowicz
Pages198-201
Number of pages4
StatePublished - Dec 1 2003
Event2003 Nanotechnology Conference and Trade Show - Nanotech 2003 - San Francisco, CA, United States
Duration: Feb 23 2003Feb 27 2003

Publication series

Name2003 Nanotechnology Conference and Trade Show - Nanotech 2003
Volume2

Other

Other2003 Nanotechnology Conference and Trade Show - Nanotech 2003
CountryUnited States
CitySan Francisco, CA
Period2/23/032/27/03

Keywords

  • Initial state
  • Nanostructures
  • Quantum computing
  • Qubit
  • Stability

ASJC Scopus subject areas

  • Engineering(all)

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