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

1997; American Physical Society; Volume: 78; Issue: 2 Linguagem: Inglês

10.1103/physrevlett.78.390

1092-0145

Juan F. Poyatos, J. I. Cirac, P. Zoller,

Quantum Mechanics and Applications

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.