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Atomic interactions for qubit-error compensation

Physical Review A, ISSN: 2469-9934, Vol: 105, Issue: 4
2022
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Article Description

Experimental imperfections induce phase and population errors in quantum systems. We present a method to compensate unitary errors affecting also the population of the qubit states. This is achieved through the interaction of the target qubit with an additional control qubit. We show that our approach works well for single-photon and two-photon excitation schemes. In the first case, we study two reduced models: (i) a two-level system in which the interaction corresponds to an effective level shift and (ii) a three-level one describing two qubits in the Bell triplet subspace. In the second case, a double Stimulated Raman Adiabatic Passage process is presented with comparable compensation efficiency with respect to the single-photon case.

Bibliographic Details

Michele Delvecchio; Francesco Petiziol; Sandro Wimberger; Ennio Arimondo

American Physical Society (APS)

Physics and Astronomy

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