Entropy fluctuation and correlation transfer in tunable discrete-time quantum walk with fractional Gaussian noise
Document Type
Article
Publication Date
8-1-2022
Abstract
We study the time correlation in the von Neumann entropy fluctuation of the tunable discrete-time quantum walk in one dimension, induced by the coin disorder arising from the temporal fractional Gaussian noise (fGn). The fGn is characterized by the Hurst exponent H, which provides three different correlation scenarios, namely antipersistent (0 < H < 0.5), memoryless (H = 0.5), and persistent (0.5 < H < 1). We show the correlation of fGn is transferred to the coin's degree of entanglement and eventually transpires in the time correlation of the von Neumann entropy fluctuation. This study hints at the potential of using noise correlation as a resource to sustain information backflow via the interaction of quantum system with the noisy environment.
Keywords
Physics, Fluids, Plasmas, Mathematical
Divisions
Science
Funders
Malaysian Ministry of Higher Education Fundamental Research Grant Scheme [FRGS/1/2020/STG07/UM/01/2]
Publication Title
Physical Review E (PRE)
Volume
106
Issue
2
Publisher
American Physical Society
Publisher Location
ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA