Please use this identifier to cite or link to this item:
Title: Hierarchy of measurement-induced Fisher information for composite states
Authors: Lu, X.-M.
Luo, S.
Oh, C.H. 
Issue Date: 31-Aug-2012
Citation: Lu, X.-M., Luo, S., Oh, C.H. (2012-08-31). Hierarchy of measurement-induced Fisher information for composite states. Physical Review A - Atomic, Molecular, and Optical Physics 86 (2) : -. ScholarBank@NUS Repository.
Abstract: Quantum Fisher information, as an intrinsic quantity for quantum states, is a central concept in quantum detection and estimation. When quantum measurements are performed on quantum states, classical probability distributions arise, which in turn lead to classical Fisher information. In this paper, we exploit the classical Fisher information induced by quantum measurements and reveal a rich hierarchical structure of such measurement-induced Fisher information. We establish a general framework for the distribution and transfer of the Fisher information. In particular, we illustrate three extremal distribution types of the Fisher information: the locally owned type, the locally inaccessible type, and the fully shared type. Furthermore, we indicate the significant role played by the distribution and flow of the Fisher information in some physical problems, e.g., the non-Markovianity of open quantum processes, the environment-assisted metrology, the cloning and broadcasting, etc. © 2012 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
ISSN: 10502947
DOI: 10.1103/PhysRevA.86.022342
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Feb 15, 2019


checked on Feb 6, 2019

Page view(s)

checked on Feb 1, 2019

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.