Articles with "fock space" as a keyword



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Diagonal and off-diagonal hyperfine structure matrix elements in KCs within the relativistic Fock space coupled cluster theory

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Published in 2020 at "Chemical Physics Letters"

DOI: 10.1016/j.cplett.2020.137825

Abstract: Abstract The four-component relativistic Fock space coupled cluster method is used to describe the magnetic hyperfine interaction in low-lying electronic states of the KCs molecule. Both diagonal and off-diagonal matrix elements as functions of the… read more here.

Keywords: fock space; space coupled; relativistic fock; matrix ... See more keywords
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The three point gauge algebraV⋉sl(2,R)⊕(ΩR/dR)and its action on a Fock space

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Published in 2019 at "Journal of Algebra"

DOI: 10.1016/j.jalgebra.2018.10.033

Abstract: Abstract The three point current algebra sl ( 2 , R ) where R = C [ t , t − 1 , u | u 2 = t 2 + 4 t ] and… read more here.

Keywords: fock space; three point; gauge;
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The Bargmann transform on Lp(R)

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Published in 2018 at "Journal of Mathematical Analysis and Applications"

DOI: 10.1016/j.jmaa.2018.08.031

Abstract: Abstract We study the mapping properties of the Bargmann transform B on L p spaces of the real line. It is well known that B maps L 2 ( R ) isometrically onto the Fock… read more here.

Keywords: fock space; bargmann transform; transform;
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Exploring the spectroscopic constants of , (main and a satellite) and states of N ion using the Fock-space coupled-cluster with eigenvalue independent partitioning

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Published in 2020 at "Molecular Physics"

DOI: 10.1080/00268976.2020.1774673

Abstract: The Fock-space coupled-cluster (FSCC) method appears as a robust computational scheme if reformulated within the eigenvalue independent partitioning framework (EIP-FSCC) which efficiently deals with the intruder states that cause convergence problems in its standard effective… read more here.

Keywords: independent partitioning; fock space; space coupled; eip fsccsd ... See more keywords
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A class of weighted composition operators on the Fock space

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Published in 2019 at "Complex Variables and Elliptic Equations"

DOI: 10.1080/17476933.2019.1643332

Abstract: ABSTRACT By applying reproducing kernel techniques, a class of weighted composition operators on the Fock space, which are unitarily equivalent to nonzero constant multiple of composition operators, are characterized completely. read more here.

Keywords: weighted composition; operators fock; fock space; composition ... See more keywords
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Fock-space geometry and strong correlations in many-body localized systems

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Published in 2021 at "Physical Review B"

DOI: 10.1103/physrevb.104.205411

Abstract: We adopt a geometric perspective on Fock space to provide two complementary insights into the eigenstates in many-body-localized fermionic systems. On the one hand, individual many-bodylocalized eigenstates are well approximated by a Slater determinant of… read more here.

Keywords: many body; localized systems; geometry; body localized ... See more keywords
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Relativistic Fock space coupled-cluster study of bismuth electronic structure to extract the Bi nuclear quadrupole moment

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Published in 2021 at "Physical Review C"

DOI: 10.1103/physrevc.104.034316

Abstract: L.V. Skripnikov, A.V. Oleynichenko, A.V. Zaitsevskii, D.E. Maison, and A.E. Barzakh Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center “Kurchatov Institute” (NRC “Kurchatov Institute” PNPI), 1 Orlova roscha, Gatchina, 188300 Leningrad… read more here.

Keywords: relativistic fock; study bismuth; cluster study; fock space ... See more keywords
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Finite-Field Calculations of Transition Properties by the Fock Space Relativistic Coupled Cluster Method: Transitions between Different Fock Space Sectors

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Published in 2020 at "Symmetry"

DOI: 10.3390/sym12111845

Abstract: Reliable information on transition matrix elements of various property operators between molecular electronic states is of crucial importance for predicting spectroscopic, electric, magnetic and radiative properties of molecules. The finite-field technique is a simple and… read more here.

Keywords: finite field; space; transition; fock space ... See more keywords