Journal
Scientific and technical journal of information technologies, mechanics and optics
UDK535.14
Issue:1 (71)
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A model of three qubit quantum logical gate of conditional double controlled phase shift is suggested. Quantum unit of information – qubit – is encoded by polarization state of quantum mode of optical cavity. A conditional operator which acts on a field states is obtained. It is shown that this operator works as required phase transformation under the certain conditions with high possibility.