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3$\alpha$-cluster structures and monopole transitions of $0^+$ states in $^{12}$C and $^{14}$C were investigated with $3\alpha$- and $^{10}$Be+$\alpha$-cluster models. A gas-like $3\alpha$ state and a bending-chain $3\alpha$ state were…

核理论 · 物理学 2016-09-07 Yuta Yoshida , Yoshiko Kanada-En'yo

We present a new method to describe the kinetics of driven lattice gases with particle-particle interactions beyond hard-core exclusions. The method is based on the time-dependent density functional theory for lattice systems and allows one…

统计力学 · 物理学 2015-05-20 Marcel Dierl , Philipp Maass , Mario Einax

It is a well-known fact that a cluster of nucleons can be formed in the interior of an atomic nucleus, and such clusters may occupy molecular-like orbitals, showing characteristics similar to normal molecules consisting of atoms. Chemical…

A simple model of oscillator chain with dynamical traps and additive white noise is considered. Its dynamics was studied numerically. As demonstrated, when the trap effect is pronounced nonequilibrium phase transitions of a new type arise.…

统计力学 · 物理学 2009-11-10 Ihor Lubashevsky , Reinhard Mahnke , Morteza Hajimahmoodzadeh , Albert Katsnelson

A systematic investigation of even-even superheavy elements in the region of proton numbers $100 \leq Z \leq 130$ and in the region of neutron numbers from the proton-drip line up to neutron number $N=196$ is presented. For this study we…

核理论 · 物理学 2016-04-27 S. E. Agbemava , A. V. Afanasjev , T. Nakatsukasa , P. Ring

Linear response time-dependent density functional theory is used to study low-lying electronic continuum states of targets that can bind an extra electron. Exact formulas to extract scattering amplitudes from the susceptibility are derived…

其他凝聚态物理 · 物理学 2009-11-11 Adam Wasserman , Neepa T. Maitra , Kieron Burke

The time-dependent kinetics of formation and evolution of nano-size atomic clusters is investigated and illustrated with the nucleation dynamics of ion-seed Ar$_n$H$^+$ particles. The rates of growth and degradation of Ar-atomic shells…

原子与分子团簇 · 物理学 2022-02-23 M. G. Rozman , M. Bredice , J. Smucker , H. R. Sadeghpour , D. Vrinceanu , R. Cote , V. Kharchenko

Diffusion and clustering of lattice vacancies in silicon as a function of temperature, concentration, and interaction range are investigated by Kinetic Lattice Monte Carlo simulations. It is found that higher temperatures lead to larger…

材料科学 · 物理学 2007-05-23 Benjamin P. Haley , Keith M. Beardmore , Niels Grønbech-Jensen

Spin and isospin are essential degrees of freedom in nuclear systems, and the relevant studies on their properties play important roles not only in nuclear physics but also in nuclear astrophysics, particle physics, and so on. In this…

核理论 · 物理学 2018-10-09 Haozhao Liang

We demonstrate the large scale effects of the interplay between shape and hard core interactions in a system with left- and right-pointing arrowheads ~$\textless ~~ \textgreater$~ on a line, with reorientation dynamics. This interplay leads…

统计力学 · 物理学 2016-11-17 Mahendra D. Khandkar , Robin Stinchcombe , Mustansir Barma

A relation between a class of stationary points of the energy landscape of continuous spin models on a lattice and the configurations of a Ising model defined on the same lattice suggests an approximate expression for the microcanonical…

统计力学 · 物理学 2011-03-22 Lapo Casetti , Cesare Nardini , Rachele Nerattini

The lattice dynamics of coesite has been studied by a combination of diffuse x-ray scattering, inelastic x-ray scattering and an ab initio lattice dynamics calculation. The combined technique gives access to the full lattice dynamics in…

N-\alpha structures of light nuclei with axial symmetry are studied using relativistic Hartree approximation. Metastable excited states are searched in a configuration space which allows linear alpha chain structures. As a result, it is…

核理论 · 物理学 2008-11-26 Suk-Ho Hong , Suk-Joon Lee

The first 52 fs of a time evolution of the electron density in OCS after an interaction with an intense sub 10 fs laser pulse are studied using the time-dependent density functional theory. The nuclear motion in this linear trimer is…

材料科学 · 物理学 2008-08-18 G. Bilalbegovic

The dynamics of chiral nuclei is investigated for the first time with the time-dependent and tilted axis cranking covariant density functional theories on a three-dimensional space lattice in a microscopic and self-consistent way. The…

核理论 · 物理学 2022-02-08 Z. X. Ren , P. W. Zhao , J. Meng

We employ a microscopic approach that examines the impact of isospin dynamics on the process of low energy nuclear fusion along an isotope chain and dependence on deformation. Our method utilizes the density constrained time-dependent…

核理论 · 物理学 2023-10-13 Richard Gumbel , Christian Ross , A. S. Umar

We consider the evolution of two-time correlations in the quantum XXZ spin-chain in contact with an environment causing dephasing. Extending quasi-exact time-dependent matrix product state techniques to consider the dynamics of two-time…

强关联电子 · 物理学 2019-11-06 Stefan Wolff , Jean-Sebastien Bernier , Dario Poletti , Ameneh Sheikhan , Corinna Kollath

Kinetics of separation between the low and high density phases in a single component Lennard-Jones model has been studied via molecular dynamics simulations, at a very low temperature, in the space dimension $d=2$. For densities close to…

统计力学 · 物理学 2017-04-26 Jiarul Midya , Subir K. Das

A relativistic nuclear energy density functional is developed, guided by two important features that establish connections with chiral dynamics and the symmetry breaking pattern of low-energy QCD: a) strong scalar and vector fields related…

核理论 · 物理学 2008-11-26 P. Finelli , N. Kaiser , D. Vretenar , W. Weise

We present numerical results obtained from Time-Dependent Density Functional calculations of the dynamics of liquid He-4 in different environments characterized by geometrical confinement. The time-dependent density profile and velocity…

凝聚态物理 · 物理学 2009-11-07 Luigi Giacomazzi , Flavio Toigo , Francesco Ancilotto