Search Results - "Leviatan, A."

SU(3) partial dynamical symmetry and nuclear shapes by Leviatan, A.

“…We consider several variants of SU(3) partial dynamical symmetry in relation to quadrupole shapes in nuclei. Explicit construction of Hamiltonians with such…”
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Partial dynamical symmetry at critical points of quantum phase transitions by Leviatan, A

“…We show that partial dynamical symmetries can occur at critical points of quantum phase transitions, in which case underlying competing symmetries are…”
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Symmetries and supersymmetries of the dirac hamiltonian with axially deformed scalar and vector potentials by Leviatan, A

“…We consider several classes of symmetries of the Dirac Hamiltonian in 3 + 1 dimensions, with axially deformed scalar and vector potentials. The symmetries…”
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Partial dynamical symmetries and shape coexistence in nuclei by Leviatan, A, Gavrielov, N

“…We present a symmetry-based approach for shape coexistence in nuclei, founded on the concept of partial dynamical symmetry (PDS). The latter corresponds to the…”
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First-order quantum phase transitions: Test ground for emergent chaoticity, regularity and persisting symmetries by Macek, M., Leviatan, A.

“…We present a comprehensive analysis of the emerging order and chaos and enduring symmetries, accompanying a generic (high-barrier) first-order quantum phase…”
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Supersymmetric patterns in the pseudospin, spin, and coulomb limits of the dirac equation with scalar and vector potentials by Leviatan, A

“…We show that the Dirac equation in (3+1) dimensions gives rise to supersymmetric patterns when the scalar and vector potentials are (i). Coulombic with…”
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Interplay between shape-phase transitions and shape coexistence in the Zr isotopes by Gavrielov, N, Leviatan, A, Iachello, F

“…We investigate the evolution of structure in the zirconium isotopes where one of the most complex situations encountered in nuclear physics occurs. We…”
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10th International Workshop on “Quantum Phase Transitions in Nuclei and Many-Body Systems” by Vretenar, D., Leviatan, A.

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Effect of a fermion on quantum phase transitions in bosonic systems by Iachello, F., Leviatan, A., Petrellis, D.

“…The effect of a fermion with angular momentum j on quantum phase transitions of a (s,d) bosonic system is investigated. It is shown that the presence of a…”
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Evolution of order and chaos across a first-order quantum phase transition by Leviatan, A., Macek, M.

“…We study the evolution of the dynamics across a generic first-order quantum phase transition in an interacting boson model of nuclei. The dynamics inside the…”
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Partial dynamical symmetry and odd-even staggering in deformed nuclei by Leviatan, A

“…Partial dynamical symmetry (PDS) is shown to be relevant for describing the odd-even staggering in the γ-band of 156Gd while retaining solvability and good…”
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Quantum phase transitions in Bose–Fermi systems by Petrellis, D., Leviatan, A., Iachello, F.

“…► We study quantum phase transitions in a system of N bosons and a single- j fermion. ► Classical order parameters and correlation diagrams of quantum levels…”
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Intertwined quantum phase transitions in the Zr chain by Gavrielov, N., Leviatan, A., Iachello, F.

“…We introduce the notion of intertwined quantum phase transitions (IQPTs), for which a crossing of two configurations coexists with a pronounced shape-evolution…”
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Partial dynamical symmetry in quantum Hamiltonians with higher-order terms by García-Ramos, J E, Leviatan, A, Van Isacker, P

“…A generic procedure is proposed to construct many-body quantum Hamiltonians with partial dynamical symmetry. It is based on a tensor decomposition of the…”
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Partial dynamical symmetry and the vibrational structure of Cd isotopes by Leviatan, A., Gavrielov, N., García-Ramos, J.E., Van Isacker, P.

“…The recently reported deviations of selected non-yrast states in 110 Cd from the expected sphericalvibrator behaviour, is addressed by means of an Hamiltonian…”
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Algebraic Models of Hadron Structure: II. Strange Baryons by Bijker, R., Iachello, F., Leviatan, A.

“…The algebraic treatment of baryons is extended to strange resonances. Within this framework we study a collective string-like model in which the radial…”
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On the relativistic foundations of pseudospin symmetry in nuclei by Ginocchio, J.N., Leviatan, A.

“…We show that the generators of pseudospin symmetry are the non-relativistic limit of the generators of an SU(2) symmetry which leaves invariant the Dirac…”
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Partial Dynamical Symmetry in Deformed Nuclei by Leviatan, A

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Generalized partial dynamical symmetry in nuclei by Leviatan, A, Isacker, P Van

“…We introduce the notion of a generalized partial dynamical-symmetry for which part of the eigenstates have part of the dynamical symmetry. This general concept…”
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Critical-point symmetry in a finite system by Leviatan, A, Ginocchio, J N

“…At a critical point of a second-order phase transition the intrinsic energy surface is flat and there is no stable minimum value of the deformation. However,…”
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