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Comparison of information-theoretic products and inequalities for the lowest bound and unbound electronic states of H2+ based on exact calculation. / Astashkevich, Sergey A.
в: Physics Letters A, Том 383, № 24, 2019, стр. 2854-2861.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Comparison of information-theoretic products and inequalities for the lowest bound and unbound electronic states of H2+ based on exact calculation
AU - Astashkevich, Sergey A.
PY - 2019
Y1 - 2019
N2 - A study of information-theoretic properties of molecular bond on the example of the ground (bound) and the lowest excited (unbound) states of H was conducted. Data about general information-theoretic measures, information products (Cramér-Rao, Fisher-Shannon information, and LMC complexity) and their inequalities in position and momentum spaces as a function of internuclear distance –20 a.u. were obtained by an exact numerical calculation of the wave function. A systematic correlation between these information products was established. It was found that LMC complexity is most sensitive and detailed among these information products. A clear correlation between accuracy of determination of energy and information products in the simplest LCAO model compared to results of the exact calculation was observed.
AB - A study of information-theoretic properties of molecular bond on the example of the ground (bound) and the lowest excited (unbound) states of H was conducted. Data about general information-theoretic measures, information products (Cramér-Rao, Fisher-Shannon information, and LMC complexity) and their inequalities in position and momentum spaces as a function of internuclear distance –20 a.u. were obtained by an exact numerical calculation of the wave function. A systematic correlation between these information products was established. It was found that LMC complexity is most sensitive and detailed among these information products. A clear correlation between accuracy of determination of energy and information products in the simplest LCAO model compared to results of the exact calculation was observed.
KW - Shannon information entropy
KW - Fisher information
KW - LMC complexity
KW - Uncertainty relations
KW - Hydrogen molecular ion
KW - Molecular bond
KW - Fisher information
KW - Hydrogen molecular ion
KW - LMC complexity
KW - Molecular bond
KW - Shannon information entropy
KW - Uncertainty relations
UR - http://www.scopus.com/inward/record.url?scp=85067452145&partnerID=8YFLogxK
U2 - 10.1016/j.physleta.2019.06.021
DO - 10.1016/j.physleta.2019.06.021
M3 - Article
VL - 383
SP - 2854
EP - 2861
JO - Physics Letters A
JF - Physics Letters A
SN - 0375-9601
IS - 24
ER -
ID: 43903305