General criteria for quantum state smoothing with necessary and sufficient criteria for linear Gaussian quantum systems

View/ Open
Embargoed until: 2021-04-09
Author(s)
Laverick, Kiarn T
Chantasri, Areeya
Wiseman, Howard M
Year published
2020
Metadata
Show full item recordAbstract
). However, this smoothing technique requires an observer (Alice, say) to know the nature of the measurement records that are unknown to her in order to characterize the possible true states for Bob’s (say) systems. If Alice makes an incorrect assumption about the set of true states for Bob’s system, she will obtain a smoothed state that is suboptimal, and, worse, may be unrealizable (not corresponding to a valid evolution for the true states) or even unphysical (not represented by a state matrix). However, this smoothing technique requires an observer (Alice, say) to know the nature of the measurement records that are unknown to her in order to characterize the possible true states for Bob’s (say) systems. If Alice makes an incorrect assumption about the set of true states for Bob’s system, she will obtain a smoothed state that is suboptimal, and, worse, may be unrealizable (not corresponding to a valid evolution for the true states) or even unphysical (not represented by a state matrix
View less >
View less >
Journal Title
Quantum Studies: Mathematics and Foundations
Copyright Statement
© 2020 Springer International Publishing Switzerland. This is an electronic version of an article published in Advances in Quantum Studies: Mathematics and Foundations, 2020. Advances in Intelligent Systems and Computing is available online at: http://link.springer.com/ with the open URL of your article.
Note
This publication has been entered in Griffith Research Online as an advanced online version.
Subject
Physical Sciences
quant-ph