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Lecture 4. Single quantum bit V. I. Yashin |
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Abstract: In this Lecture we discussed the properties of a single quantum bit. We introduced notations for some states on a qubit, discussed the meaning of the Bloch ball, defined Pauli observables and basic unitary operations on a single qubit, and mentioned some irreversible operations on a qubit. As an important result, we proved the universality of the gate set |
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