14 citations · 40 across the 5 of their papers we have counts for
10 papers · 1 filter
Quantifying entanglement of two-qubit Werner states
Artur Czerwinski
In this article, we introduce a framework for entanglement quantification of photon pairs represented by two-qubit Werner states. The measurement scheme is based on the symmetric i…
Quantum state tomography of qutrits by single-photon counting with imperfect measurements
Jakub Szlachetka, Artur Czerwinski
In this article, we introduce a framework for quantum state tomography of qutrits by projective measurements. The framework is based on photon-counting with measurement results dis…
Quantum State Tomography of Four-Level Systems with Noisy Measurements
Artur Czerwinski
In this article, we investigate the problem of state reconstruction of four-level quantum systems. A realistic scenario is considered with measurement results distorted by random u…
Quantum Tomography of Pure States with Projective Measurements Distorted by Experimental Noise
Artur Czerwinski
The article undertakes the problem of pure state estimation from projective measurements based on photon counting. Two generic frames for qubit tomography are considered -- one com…
Open quantum systems integrable by partial commutativity
Artur Czerwinski
The article provides a framework to solve linear differential equations based on partial commutativity which is introduced by means of the Fedorov theorem. The framework is applied…
Phase estimation of time-bin qudits by time-resolved single-photon counting
Artur Czerwinski, Karolina Sedziak-Kacprowicz, Piotr Kolenderski
We present a comprehensive framework for quantum state tomography (QST) of time-bin qudits sent through a fiber. Starting from basic assumptions, we define a positive-operator valu…