Uncertainty principle and quantum fisher information. II.
Uncertainty principle and quantum fisher information. II.
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DOI:
10.1063/1.2748210
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发表时间:
2007-07-01
影响因子:
1.3
通讯作者:
Isola, Tommaso
中科院分区:
文献类型:
--
作者:
Gibilisco, Paolo;Imparato, Daniele;Isola, Tommaso
Heisenberg and Schrodinger uncertainty principles give lower bounds for the product of variances Var(rho)(A)Var(rho)(B) if the observables A,B are not compatible, namely, if the commutator [A,B] is not zero. In this paper, we prove an uncertainty principle in Schrodinger form where the bound for the product of variances Var(rho)(A)Var(rho)(B) depends on the area spanned by the commutators i[rho,A] and i[rho,B] with respect to an arbitrary quantum version of the Fisher information. (c) 2007 American Institute of Physics.