Title
On skew information
Abstract
In this paper, we show that skew information introduced by Wigner and Yanase, which is a natural informational extension of variance for pure states, can be interpreted as a measure of quantum uncertainty. By virtue of skew information, we establish a new uncertainty relation in the spirit of Schrodinger, which incorporates both incompatibility (encoded in the commutator) and correlations (encoded in a new correlation measure related to skew information) between observables, and moreover is stronger than the conventional ones.
Year
DOI
Venue
2004
10.1109/TIT.2004.831853
IEEE Transactions on Information Theory
Keywords
Field
DocType
new uncertainty relation,pure state,natural informational extension,quantum uncertainty,new correlation measure,skew information,fisher information,quantum statistical mechanics,information theory
Information theory,Statistical physics,Discrete mathematics,Quantum statistical mechanics,Uncertainty principle,Quantum state,Schrödinger's cat,Skew,Fisher information,Commutator (electric),Calculus,Mathematics
Journal
Volume
Issue
ISSN
50
8
0018-9448
Citations 
PageRank 
References 
5
1.54
2
Authors
2
Name
Order
Citations
PageRank
Shunlong Luo1115.02
Qiang Zhang28820.16