Characterizing errors for quantum Fourier transform on IBM quantum



Título del documento: Characterizing errors for quantum Fourier transform on IBM quantum
Revista: Revista mexicana de física
Base de datos: PERIÓDICA
Número de sistema: 000460806
ISSN: 0035-001X
Autores: 1
1
1
Instituciones: 1Universidad ORT, Facultad de Ingeniería, Montevideo. Uruguay
Año:
Periodo: May-Jun
Volumen: 68
Número: 3
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, teórico
Resumen en inglés Abstrac The performance of today’s quantum computers are affected by noise. This effect can be analyzed in the result of simple quantum algorithms in real quantum computers. The noise can be characterized as a decoherence error or a systematic error, the last could be corrected by a unitary rotation. In this article we propose two methods to model a systematic error, in the Quantum Fourier Transform algorithm (QFT). The first method uses the isotropic index presented in [1] and needs to reconstruct the density matrix of the experimental state, while the second method, although less general, only needs to reconstruct the reduced density matrices for each qubit. In both methods, a unitary transformation is proposed, which approximates the experimental result to the expected theoretical state. As an example, the QFT algorithm is analyzed for two qubit states, in quantum IBM Q computer ibmq_santiago
Disciplinas: Física y astronomía
Palabras clave: Física,
Transformada cuántica de Fourier,
Corrección de error cuántico,
IBM quantum
Keyword: Physics,
Quantum Fourier transform,
Quantum error correction,
IBM quantum
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