Abstract | ||
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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 |
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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 Luo | 1 | 11 | 5.02 |
Qiang Zhang | 2 | 88 | 20.16 |