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SYMMETRY-BASEL, ISSN 2073-8994, 08/2019, Volume 11, Issue 8, p. 975
Based on the G. Goldin's quantum current algebra symmetry representation theory, have succeeded in explaining a hidden relationship between the quantum... 
SPACE | quantum symmetries | REPRESENTATIONS | fock space | hamiltonian reconstruction | MULTIDISCIPLINARY SCIENCES | quantum integrability | LOCAL CURRENT-ALGEBRA | current algebra representations
Journal Article
CONDENSED MATTER PHYSICS, ISSN 1607-324X, 2019, Volume 22, Issue 3, p. 33101
Journal Article
Journal of Chemical Theory and Computation, ISSN 1549-9618, 07/2017, Volume 13, Issue 7, pp. 3171 - 3184
We combine internally contracted multireference coupled cluster theory with a four-component treatment of scalar-relativistic effects based on the spin-free... 
SINGLE-REFERENCE FORMALISM | INITIAL IMPLEMENTATION | CONSISTENT BASIS-SETS | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | CHEMISTRY, PHYSICAL | SIMULTANEOUS-OPTIMIZATION | RELATIVISTIC QUANTUM-CHEMISTRY | DENSITY-FUNCTIONAL THEORY | FOCK-SPACE | ZETA BASIS-SETS | 2ND-ORDER PERTURBATION-THEORY | TRANSITION-METAL MONOXIDES
Journal Article
Journal of Functional Analysis, ISSN 0022-1236, 06/2016, Volume 270, Issue 11, pp. 4340 - 4368
We provide general conditions for which bosonic quadratic Hamiltonians on Fock spaces can be diagonalized by Bogoliubov transformations. Our results cover the... 
Bogoliubov transformation | Fock space | Quadratic Hamiltonian | FORMS | MATHEMATICS | ONE-COMPONENT | EXCITATION SPECTRUM | CHARGED BOSE-GAS | INTERACTING BOSONS | GROUND-STATE ENERGY
Journal Article
Journal of Chemical Physics, ISSN 0021-9606, 10/2004, Volume 121, Issue 14, pp. 6634 - 6639
An alternative formulation of the intermediate Hamiltonian Fock-space coupled cluster scheme developed before is presented. The methodological and... 
WAVE-FUNCTIONS | EXCITATION-ENERGIES | BARIUM | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | RELATIVISTIC DIRAC-FOCK | RADIUM | ELECTRONIC-STRUCTURE
Journal Article
Molecular Physics, ISSN 0026-8976, 07/2015, Volume 113, Issue 13-14, pp. 2046 - 2060
A perturbative analysis of the ground-state similarity transformed Hamiltonian and its effect on the various Fock-space coupled cluster (FSCC) sectors is... 
perturbative order | Fock space | similarity transformed Hamiltonian | electric response properties | SINGLE | CONFIGURATION-INTERACTION | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | CHEMISTRY, PHYSICAL | IONIZED STATES | OPEN-SHELL | 5TH-ORDER | EXCITATION-ENERGIES | DOUBLES METHOD | EXCITED-STATE PROPERTIES | INCLUSION | TRIPLE EXCITATIONS | Quantum theory
Journal Article
Chemical Physics, ISSN 0301-0104, 2012, Volume 392, Issue 1, pp. 78 - 82
Mean absolute error of 14 calculated La 3+ excitation energies relative to experiment (10 3 cm −1). The four columns show, from left to right, results for... 
Actinide transition energies | Extrapolated intermediate Hamiltonian | Fock-space coupled cluster | EXCITATION-ENERGIES | GAUSSIAN-BASIS SET | DIRAC-FOCK | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | SECTOR | CHEMISTRY, PHYSICAL | ELECTRONIC-STRUCTURE | Nurses | Methods
Journal Article
Journal of Combinatorial Theory, Series A, ISSN 0097-3165, 04/2018, Volume 155, pp. 100 - 121
We show that a deformation of Schur polynomials (matching the Shintani–Casselman–Shalika formula for the p-adic spherical Whittaker function) is obtained from... 
Fock space | Discrete time evolution | Partition function | τ-functions | Six-vertex model | EISENSTEIN SERIES | ALGEBRA | EQUATIONS | tau-functions | FORMULA | MULTIPLE DIRICHLET SERIES | ALTERNATING SIGN MATRICES | CHARACTERS | MATHEMATICS | OPERATOR
Journal Article
Journal of Mathematical Physics, ISSN 0022-2488, 2015, Volume 56, Issue 5, p. 53507
A lattice model of radiative decay (so-called spin-boson model) of a two level atom and at most two photons is considered. The location of the essential... 
FOCK SPACE | MODEL | OPERATOR | PHYSICS, MATHEMATICAL | DISCRETE SPECTRUM | FIELD | Eigenvalues | Lower bounds | Photons | Coupling | Eigen values | EIGENVALUES | RADIATIVE DECAY | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS | PHOTONS | HAMILTONIANS | COUPLING CONSTANTS | SPECTRA
Journal Article
Journal of Chemical Physics, ISSN 0021-9606, 12/2000, Volume 113, Issue 22, pp. 9905 - 9910
An intermediate Hamiltonian Fock-space coupled cluster method is introduced, based on the formalism developed by Malrieu and co-workers in the context of... 
BODY PERTURBATION-THEORY | INCOMPLETE MODEL SPACES | STATES | GAUSSIAN-BASIS SET | EXPANSIONS | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | CHEMISTRY, PHYSICAL | IONS | RELATIVISTIC DIRAC-FOCK | FORMULATION | LINKED-DIAGRAM
Journal Article
Journal Article
PRAMANA-JOURNAL OF PHYSICS, ISSN 0304-4289, 03/2018, Volume 90, Issue 3
Valence universal multireference coupled cluster (VUMRCC) method via eigenvalue independent partitioning has been applied to estimate the effect of three-body... 
ionisation potential | GROUND-STATE | PHYSICS, MULTIDISCIPLINARY | transformed Hamiltonian | Triple excitation | OUTER-VALENCE | EXCITED-STATES | INCOMPLETE MODEL SPACES | PERTURBATION-THEORY | QUANTUM-CHEMISTRY | INDEPENDENT PARTITIONING TECHNIQUE | FOCK-SPACE | SPECTRA | GENERAL-R METHOD
Journal Article
Open Systems and Information Dynamics, ISSN 1230-1612, 12/2015, Volume 22, Issue 4
We consider a quantum stochastic evolution in continuous time defined by the quantum stochastic differential equation of Hudson and Parthasarathy. On one side,... 
FOCK SPACE | BOUNDARY-VALUE PROBLEM | EQUATIONS | UNITARILY EQUIVALENT | STATISTICS & PROBABILITY | DIFFUSION | FORMULA | PHYSICS, MATHEMATICAL | MARKOV-PROCESSES
Journal Article
Journal of Physics G: Nuclear and Particle Physics, ISSN 0954-3899, 12/2009, Volume 36, Issue 12, pp. 123101 - 123101 (46)
The article reviews the general version of the Bohr collective model for the description of quadrupole collective states, including a detailed discussion of... 
GENERATOR-COORDINATE-METHOD | INERTIAL FUNCTIONS | HARTREE-FOCK APPROXIMATION | NUMERICAL-SOLUTION | LOCAL GAUSSIAN APPROXIMATION | MEAN-FIELD THEORY | SPHERICAL-HARMONICS | EVEN NUCLEI | POTENTIAL-ENERGY SURFACES | PHYSICS, NUCLEAR | SELF-CONSISTENT APPROACH | PHYSICS, PARTICLES & FIELDS | Physics - Nuclear Theory
Journal Article
Chemical Physics, ISSN 0301-0104, 02/2009, Volume 356, Issue 1-3, pp. 76 - 85
Journal Article
The Journal of Chemical Physics, ISSN 0021-9606, 1995, Volume 103, Issue 3, pp. 1064 - 1076
A series of size-consistent approximations to the equation-of-motion coupled cluster method in the singles and doubles approximation (EOM-CCSD) are developed... 
FULL CCSDT MODEL | EXCITATION-ENERGIES | POTENTIAL-ENERGY SURFACES | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | ELECTRON CORRELATION THEORIES | FOCK-SPACE | OPEN-SHELL | PROPAGATOR THEORY | LINEAR RESPONSE | SYMMETRY-BREAKING | EXCITED-STATES
Journal Article
Journal of Chemical Physics, ISSN 0021-9606, 10/2001, Volume 115, Issue 15, pp. 6862 - 6865
The intermediate Hamiltonian Fock-space coupled cluster method developed recently is applied to excitations in the one-hole one-particle sector, taking xenon... 
IONS | RELATIVISTIC DIRAC-FOCK | GAUSSIAN-BASIS SET | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL
Journal Article
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