Quantum detector tomography of a superconducting nanostrip photon-number-resolving detector

M Endo, T Sonoyama, M Matsuyama, F Okamoto… - Optics …, 2021 - opg.optica.org
Superconducting nanostrip photon detectors have been used as single-photon detectors,
which can discriminate only photons' presence or absence. It has recently been found that …

Multi-channel quantum parameter estimation

L Bao, B Qi, Y Wang, D Dong, R Wu - Science China Information Sciences, 2022 - Springer
The aim of quantum metrology is to exploit quantum effects to improve the precision of
parameter estimation beyond its classical limit. In this paper, we investigate the quantum …

On the regularization and optimization in quantum detector tomography

S **
P Bej, A Banerjee - Physical Review A, 2024 - APS
We study entanglement activation in a generalized entanglement swap** process
involving two Bell pairs and generalized measurements. The conventional understanding …

Detector entanglement: Quasidistributions for Bell-state measurements

J Sperling, I Gianani, M Barbieri, E Agudelo - Physical Review A, 2023 - APS
Measurements in the quantum domain can exceed classical notions. This concerns
fundamental questions about the nature of the measurement process itself, as well as …

Tomography of quantum detectors using neural networks

H Ma, S **ao, D Dong, IR Petersen - IFAC-PapersOnLine, 2023 - Elsevier
Quantum detector tomography is a fundamental technique for calibrating quantum devices
and thus lay foundations for quantum information processing tasks. In this work, we propose …

Quantum Detector and Process Tomography: Algorithm Design and Optimisation

S **ao - 2023 - unsworks.unsw.edu.au
This thesis develops new algorithms and investigates optimisation in quantum detector
tomography (QDT) and quantum process tomography (QPT). QDT is a fundamental …