Characterization of how Errors Accumulate in Quantum Computers

Abstract

We study the achievements of quantum circuits comprised of several one- and two-qubit gates. Quantum process matrices are determined for the basic one- and two-qubit gate operations and concatenated to yield the process matrix of the combined quantum circuit. Examples are given of process matrices obtained by a Monte Carlo wavefunction analysis of Rydberg blockade gates in neutral atoms. Our analysis is ideally suited to compare different implementations of the same process. In particular, we show that the three-qubit Toffoli gate facilitated by the simultaneous interaction between all atoms may be accomplished with higher fidelity than a concatenation of one- and two-qubit gates.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 10, 2014
Accession Number
AD1052265

Entities

People

  • D. D. Rao
  • J. Gulliksen
  • K. Molmer

Organizations

  • Aarhus University

Tags

DTIC Thesaurus Topics

  • Data Science
  • Frequency
  • Hilbert Space
  • Quantum Algorithms
  • Quantum Bits
  • Quantum Circuits
  • Quantum Computers
  • Quantum Computing
  • Quantum Information
  • Quantum Information Science
  • Quantum States
  • Reliability
  • Simulations
  • Wave Functions

Fields of Study

  • Physics

Readers

  • Computer Engineering
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Systems Analysis and Design

Technology Areas

  • Quantum Computing