Izvestiya of Saratov University.
ISSN 1817-3020 (Print)
ISSN 2542-193X (Online)


quantum information

Preparing and readout of the qubit on the particle in the potential well

Background and Objectives: There are known Rabi oscillations between the basic states of a two-level system, and the preparation of any qubit states is possible using these oscillations. There are several ways to readout qubits. It can be the strong random projective measurement, the weak continuous selective measurement, even the non-demolition readout of the qubit by a measurement of the ancillary qubit. Another qubit readout scheme is proposed in this article.