A quantum probability splitter and its application to qubit preparation

This paper presents a quantum probability splitter, i.e. a quantum circuit that modifies the probability amplitudes of a qubit so that the probability on the selected basis state is halved. It also presents a potential application of this circuit related to qubit preparation: it shows how a qubit is...

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Veröffentlicht in:	Quantum information processing 2013, Vol.12 (1), p.601-610
1. Verfasser:	Sgarbas, Kyriakos N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithmics. Computability. Computer arithmetics Applied sciences Classical and quantum physics: mechanics and fields Computer science control theory systems Data Structures and Information Theory Exact sciences and technology Mathematical Physics Physics Physics and Astronomy Quantum computation Quantum Computing Quantum information Quantum Information Technology Quantum Physics Spintronics Theoretical computing
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Zusammenfassung:	This paper presents a quantum probability splitter, i.e. a quantum circuit that modifies the probability amplitudes of a qubit so that the probability on the selected basis state is halved. It also presents a potential application of this circuit related to qubit preparation: it shows how a qubit is prepared to a superposition of any valid pair of basis states probabilities, by repeated application of the quantum probability splitter.
ISSN:	1570-0755 1573-1332
DOI:	10.1007/s11128-012-0402-y