Quantum logic gates for capacitively coupled Josephson junctions

Preprint

1 March 2003

preprint
Published by arXiv in arXiv

Abstract

Based on a quantum analysis of two capacitively coupled current-biased Josephson junctions, we propose two fundamental two-qubit quantum logic gates. Each of these gates, when supplemented by single-qubit operations, is sufficient for universal quantum computation. Numerical solutions of the time-dependent Schroedinger equation demonstrate that these operations can be performed with good fidelity.

Keywords

CAPACITIVELY COUPLED
JOSEPHSON JUNCTIONS
NUMERICAL SOLUTIONS
QUANTUM LOGIC GATES
COUPLED JOSEPHSON
QUBIT

All Related Versions

Version 1, 2003-03-01, ArXiv
Version 2, 2003-10-22, ArXiv
Published version: Physical Review Letters, 91 (16), 167005.

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