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Título:
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Quantum computations on a topologically encoded qubit
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Autores:
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Nigg, Daniel ;
Müller, Markus ;
Martínez, Esteban A. ;
Schindler, Philipp ;
Hennrich, Markus ;
Monz, Thomas ;
Martín-Delgado Alcántara, Miguel Ángel ;
Blatt, Rainer
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Tipo de documento:
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texto impreso
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Editorial:
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Amer Assoc Advancement Science, 2014-07-18
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física-Modelos matemáticos
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Tipo = Artículo
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Resumen:
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The construction of a quantum computer remains a fundamental scientific and technological challenge, in particular due to unavoidable noise. Quantum states and operations can be protected from errors using protocols for fault-tolerant quantum computing (FTQC). Here we present a step towards this by implementing a quantum error correcting code, encoding one qubit in entangled states distributed over 7 trapped-ion qubits. We demonstrate the capability of the code to detect one bit flip, phase flip or a combined error of both, regardless on which of the qubits they occur. Furthermore, we apply combinations of the entire set of logical single-qubit Clifford gates on the encoded qubit to explore its computational capabilities. The implemented 7-qubit code is the first realization of a complete Calderbank-Shor-Steane (CSS) code and constitutes a central building block for FTQC schemes based on concatenated elementary quantum codes. It also represents the smallest fully functional instance of the color code, opening a route towards topological FTQC.
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En línea:
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https://eprints.ucm.es/id/eprint/47312/1/Mart%C3%ADn%20Delgado%20Alc%C3%A1ntara%20M%C3%81%2003%20LIBRE%20PREPRINT.pdf
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