High-precision tomography of ion qubits based on registration of fluorescent photons

• Published in: Laser physics letters Vol. 20; no. 6; pp. 65202 - 65208
• Main Authors: Bogdanov, Yu I, Dmitriev, I A, Bantysh, B I, Bogdanova, N A, Lukichev, V F
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.06.2023
• Subjects: fuzzy measurements; ion qubits; quantum tomography; qubit state readout

Abstract We develop a new method for high-precision tomography of ion qubit registers under conditions of limited distinguishability of logical states. It is not always possible to achieve low error rates during the readout of the quantum states of ion qubits due to the finite lifetime of excited le...