Paper Info
Title
On-Line State Estimation of 2-qubit Quantum Systems
Abstract
In this paper, the online estimation of 2-qubit states is studied based on the quantum continuous weak measurement and compressed sensing (CS) theory. The stochastic master equation is used to describe the dynamic evolution of the system. The weak measurement operator acting on the system and the dynamic equation of the measurement operator over time are derived. The number of measurements is reduced based on the CS theory. The non-negative LS algorithm is used to reconstruct the quantum system state in free evolution. At last, the numerical simulations of the on-line state estimation of 2-qubit quantum systems are carried out in MATLAB environment, and the influences of the parameters on the estimation results are analyzed by the performance comparisons.
Year
DOI
Venue
2019
10.1109/MED.2019.8798592
2019 27th Mediterranean Conference on Control and Automation (MED)
Keywords
Field
DocType
stochastic open quantum systems,online estimation of quantum states,continuous weak measurement,compressed sensing theory
Statistical physics,Quantum,Quantum system,MATLAB,Computer science,Control theory,Operator (computer programming),Master equation,Qubit,Compressed sensing,Weak measurement
Conference
ISSN
ISBN
Citations 
2325-369X
978-1-7281-2804-7
0
PageRank 
References 
Authors
0.34
2
2
Name
Order
Citations
PageRank
Yaru Tang101.35
Shuang Cong212933.36