Title
Discrimination of two nonorthogonal states against amplitude-damping noise via feed-forward control
Abstract
Guo et al. introduced the quantum feed-forward control (QFFC) before the minimum-error discrimination (MED) measurement to effectively discriminate between two nonorthogonal states via an amplitude-damping (AD) noise. However, the discrimination is inversely proportional to the success probability. To solve the problem, we propose an improved scheme where only preweak measurement and feed-forward operations are retained before the MED measurement. Interestingly, we find the improved scheme achieves a similar effect of discrimination as the scheme proposed by Guo et al. Most importantly, the value of success probability is constant to 1.
Year
DOI
Venue
2022
10.1002/cpe.6810
CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE
Keywords
DocType
Volume
amplitude-damping noise, feed-forward control, MED
Journal
34
Issue
ISSN
Citations 
10
1532-0626
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Yong-Li Yang152.91
Yu-Guang Yang244.60
Yihua Zhou375.33
Weimin Shi4378.16