Complete Characterization of a Quantum Process: The Two-Bit Quantum Gate

Journal Article · Tue Dec 31 23:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.78.390· OSTI ID:439071

Poyatos, J; Cirac, J ^[1]; Zoller, P ^[2]

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1. Departamento de Fisica Aplicada, Universidad de Castilla-La Mancha, 13071 Ciudad Real (Spain)
2. Institut fuer Theoretisch Physik, Universitaet Innsbruck, A-6020, Innsbruck (Austria)

We show how to fully characterize a quantum process in an open quantum system. We particularize the procedure to the case of a universal two-qubit gate in a quantum computer. We illustrate the method with a numerical simulation of a quantum gate in the ion trap quantum computer. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 439071
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 2 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COMPUTERS
LOGIC CIRCUITS
QUANTUM MECHANICS
SIMULATION
TOMOGRAPHY