Quantum waves - The proper basis for low dissipation quantum computing

D. K. Ferry, R. Akis, I. Knezevic

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

The promise of more effective computation led to quantum computers, which are supposed to surpass binary, digital computers. This is an outgrowth of the search for dissipation-free computation, in which the bit state is switched 'adiabatically.' Implementations in which the two local minima are at different energy levels are unstable. Using super-symmetric quantum mechanics, we show that natural transitions occur between degenerate eigenstates. Then we can write, quite generally, that the qubit should satisfy the Hamiltonian H = k2 > 0, and we associate k with the 'momentum' in Hilbert space. That is, the fundamental structure of the quantum qubit should be that of a quantum plane wave.

Original languageEnglish (US)
Pages (from-to)17-21
Number of pages5
JournalMicroelectronic Engineering
Volume63
Issue number1-3
DOIs
StatePublished - Aug 1 2002

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

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