Selected concepts of quantum state tomography

A Czerwinski - Optics, 2022 - mdpi.com
Quantum state tomography (QST) refers to any method that allows one to reconstruct the
accurate representation of a quantum system based on data obtainable from an experiment …

Explaining quantum circuits with shapley values: Towards explainable quantum machine learning

R Heese, T Gerlach, S Mücke, S Müller… - arXiv preprint arXiv …, 2023 - arxiv.org
Methods of artificial intelligence (AI) and especially machine learning (ML) have been
growing ever more complex, and at the same time have more and more impact on people's …

Scalable estimation of pure multi-qubit states

L Pereira, L Zambrano, A Delgado - Npj Quantum Information, 2022 - nature.com
We introduce an inductive n-qubit pure-state estimation method based on projective
measurements on mn+ 1 separable bases or m entangled bases plus the computational …

Testing and Debugging Quantum Circuits

SA Metwalli, R Van Meter - IEEE Transactions on Quantum …, 2024 - ieeexplore.ieee.org
This article introduces a process framework for debugging quantum circuits, focusing on
three distinct types of circuit blocks: amplitude–permutation, phase-modulation, and …

Variational determination of multiqubit geometrical entanglement in noisy intermediate-scale quantum computers

AD Muñoz-Moller, L Pereira, L Zambrano… - Physical Review …, 2022 - APS
Current noise levels in physical realizations of qubits and quantum operations limit the
applicability of conventional methods to characterize entanglement. In this adverse scenario …

Model-predictive quantum control via Hamiltonian learning

M CLOUÂTRÉ, MJ KHOJASTEH… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
This article proposes an end-to-end framework for the learning-enabled control of closed
quantum systems. The proposed learning technique is the first of its kind to utilize a …

Avoiding barren plateaus in the variational determination of geometric entanglement

L Zambrano, AD Muñoz-Moller, M Muñoz… - Quantum Science …, 2024 - iopscience.iop.org
The barren plateau (BP) phenomenon is one of the main obstacles to implementing
variational quantum algorithms in the current generation of quantum processors. Here, we …

Stochastic optimization algorithms for quantum applications

J Gidi, B Candia, AD Muñoz-Moller, A Rojas, L Pereira… - Physical Review A, 2023 - APS
Hybrid classical quantum optimization methods have become an important tool for efficiently
solving problems in the current generation of noisy intermediate-scale quantum computers …

Estimation of pure states using three measurement bases

L Zambrano, L Pereira, D Martínez, G Cañas, G Lima… - Physical Review …, 2020 - APS
We introduce a method to estimate unknown pure d-dimensional quantum states using the
probability distributions associated with only three measurement bases. The measurement …

Fast Quantum State Tomography in the Nitrogen Vacancy Center of Diamond

J Zhang, SS Hegde, D Suter - Physical Review Letters, 2023 - APS
Quantum state tomography is the procedure for reconstructing unknown quantum states
from a series of measurements of different observables. Depending on the physical system …