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The influence of finite temperatures and pairing correlations on the ground state properties of multi $\Lambda$- Ca, Sn and Pb hypernuclei is explored using finite temperature Hartree Fock Bogoliubov approach and contact pairing…

核理论 · 物理学 2024-07-30 Bahruz Suleymanli , Kutsal Bozkurt , Elias Khan , Haşim Güven , Jérôme Margueron

Finite temperature Hartree-Fock-Bogoliubov calculations are performed in Sn isotopes using Skyrme and zero-range, density-dependent pairing interactions. For both stable and very neutron-rich nuclei the critical temperature at which pairing…

核理论 · 物理学 2008-11-26 E. Khan , Nguyen Van Giai , N. Sandulescu

Background: The relativistic Hartree-Fock-Bogoliubov (RHFB) theory has recently been developed and it provides a unified and highly predictive description of both nuclear mean field and pairing correlations. Ground state properties of…

核理论 · 物理学 2015-12-16 Jia Jie Li , Jérôme Margueron , Wen Hui Long , Nguyen Van Giai

We formulate the finite-temperature relativistic Hartree-Bogoliubov theory for spherical nuclei based on a point-coupling functional, with the Gogny or separable pairing force. Using the functional PC-PK1, the framework is applied to the…

核理论 · 物理学 2014-01-21 Y. F. Niu , Z. M. Niu , N. Paar , D. Vretenar , G. H. Wang , J. S. Bai , J. Meng

Mutual entrainment effects in hot neutron-proton superfluid mixtures are studied in the framework of the self-consistent nuclear energy-density functional theory. The local mass currents in homogeneous or inhomogeneous nuclear systems,…

核理论 · 物理学 2021-02-24 Valentin Allard , Nicolas Chamel

Based on the relativistic Hartree-Fock formalism and one of the most advanced Lagrangian PKA1, we investigate the properties of the exotic nucleus 48Si. We found that 48Si may be an atypical nucleus characterized by i) the onset of doubly…

核理论 · 物理学 2018-07-27 Jia Jie Li , Wen Hui Long , Jerome Margueron , Nguyen Van Giai

Pairing reentrance phenomenon in the warm rotating $^{104}$Pd nucleus is studied within the Bardeen-Cooper-Schrieffer (BCS)-based approach (the FTBCS1). The theory takes into account the effect of quasiparticle number fluctuations on the…

核理论 · 物理学 2015-10-16 N. Quang Hung , N. Dinh Dang , B. K. Agrawal , V. M. Datar , A. Mitra , D. R. Chakrabarty

We calculate positions of one- and two-particle, proton and neutron drip lines within the Hartree-Fock-Bogoliubov theory using Skyrme interaction. We also determine an approximate $r$-process path defined as a line where the neutron binding…

核理论 · 物理学 2008-11-26 R. Smolańczuk , J. Dobaczewski

The pairing gaps, heat capacities and level densities are calculated within the BCS-based quasiparticle approach including the effect of thermal fluctuations on the pairing field within the pairing model plus noncollective rotation along…

核理论 · 物理学 2012-07-25 N. Quang Hung , N. Dinh Dang

By using the self-consistent Hartree-Fock-Bogoliubov-Popov theory, we present a detailed study of the mean-field stability of spherically trapped Bose-Fermi mixtures at finite temperature. We find that, by increasing the temperature, the…

统计力学 · 物理学 2007-05-23 Xia-Ji Liu , Michele Modugno , Hui Hu

We develop a complete Dirac-Hartree-Fock-Bogoliubov approximation to the ground state wave function and energy of finite nuclei. We apply it to spin-zero proton-proton and neutron-neutron pairing within the Dirac-Hartree-Bogoliubov…

核理论 · 物理学 2009-11-06 B. V. Carlson , D. Hirata

Mutual entrainment effects in cold neutron-proton mixtures are studied in the framework of the self-consistent nuclear energy-density functional theory. Exact expressions for the mass currents, valid for both homogeneous and inhomogeneous…

核理论 · 物理学 2021-02-05 Nicolas Chamel , Valentin Allard

We present an overview of the Hartree-Fock-Bogoliubov (HFB) theory of nucleonic superfluidity for finite nuclei. After introducing basic concepts related to pairing correlations, we show how the correlated pairs are incorporated into the…

核理论 · 物理学 2017-08-23 J. Dobaczewski , W. Nazarewicz

The behavior of several nuclear properties with temperature is analyzed within the framework of the Finite Temperature Hartree-Fock-Bogoliubov (FTHFB) theory with the Gogny force and large configuration spaces. Thermal shape fluctuations in…

核理论 · 物理学 2014-11-18 V. Martin , J. L. Egido , L. M. Robledo

An approach is proposed to nuclear pairing at finite temperature and angular momentum, which includes the effects of the quasiparticle-number fluctuation and dynamic coupling to pair vibrations within the self-consistent quasiparticle…

核理论 · 物理学 2009-11-13 N. Dinh Dang , N. Quang Hung

We study the finite temperature Hartree-Fock-BCS approximation for selected stable Sn nuclei with zero-range Skyrme forces. Hartree Fock BCS approximation allows for a straightforward interpretation of the results since it involves u and…

核理论 · 物理学 2014-11-03 E. Yüksel , E. Khan , K. Bozkurt , G. Colò

The finite-temperature linear response theory based on the finite-temperature relativistic Hartree-Bogoliubov (FT-RHB) model is developed in the charge-exchange channel to study the temperature evolution of spin-isospin excitations.…

核理论 · 物理学 2021-12-15 A. Ravlić , Y. F. Niu , T. Nikšić , N. Paar , P. Ring

We have developed a new Hartree-Fock-Bogoliubov (HFB) code which has been specifically designed to study ground state properties of nuclei near the neutron and proton drip lines. The unique feature of our code is that it takes into account…

核理论 · 物理学 2007-05-23 V. E. Oberacker , A. S. Umar , E. Teran

The Relativistic Hartree Bogoliubov theory is applied in the mean-field approximation to the description of properties of light nuclei with large neutron excess. Pairing correlations and the coupling to particle continuum states are…

核理论 · 物理学 2009-10-30 G. A. Lalazissis , D. Vretenar , W. Pöschl , P. Ring

A practical finite temperature theory is developed for the superfluid regime of a weakly interacting Bose gas in an optical lattice with additional harmonic confinement. We derive an extended Bose-Hubbard model that is valid for shallow…

量子气体 · 物理学 2009-10-13 D. Baillie , P. B. Blakie
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