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Related papers: Vacancy clustering in zirconium: an atomic scale s…

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QCD-like theories can be engineered to remain in a confined phase when compactified on an arbitrarily small circle, where their features may be studied quantitatively in a controlled fashion. Previous work has elucidated the generation of a…

High Energy Physics - Theory · Physics 2017-12-06 Kyle Aitken , Aleksey Cherman , Erich Poppitz , Laurence G. Yaffe

We introduce a new class of self-sustained states, which may exist as single solitons or form multisoliton clusters, in driven passive cylindrical microresonators. Remarkably, such states are stabilized by the radiation they emit, which…

In order to control and tailor the properties of nanodots, it is essential to separate the effects of quantum confinement from those due to the surface, and to gain insight into the influence of preparation conditions on the dot physical…

Materials Science · Physics 2009-10-31 Laurent Pizzagalli , Giulia Galli , John E. Klepeis , Francois Gygi

We propose a simple model for periodic clustering of particles under forced oscillation. Effective viscosity is assumed to increase owing to neighboring particles by analogy with the Einstein viscosity law. The linear stability analysis and…

Pattern Formation and Solitons · Physics 2026-02-12 Hidetsugu Sakaguchi

The number of earthquakes as a function of magnitude decays as a power law. This trend is usually justified using spring-block models, where slips with the appropriate global statistics have been numerically observed. However, prominent…

Disordered Systems and Neural Networks · Physics 2010-05-24 E. A. Jagla , A. B. Kolton

We generalize the small scale dynamics of the universe by taking into account models with an equation of state which evolves with time, and provide a complete formulation of the cluster virialization attempting to address the nonlinear…

Cosmology and Nongalactic Astrophysics · Physics 2009-09-01 S. Basilakos , J. C. Bueno Sanchez , Leandros Perivolaropoulos

We propose a method for quantifying charge-driven instabilities in clusters, based on equilibrium simulations under confinement at constant external pressure. This approach makes no assumptions about the mode of decay and allows different…

Atomic and Molecular Clusters · Physics 2015-10-28 Mark A. Miller , David A. Bonhommeau , Christian P. Moerland , Sarah J. Gray , Marie-Pierre Gaigeot

We examine the structure and dynamics of small isolated $N$-particle clusters interacting via short-ranged Morse potentials. "Ideally preprared ensembles" obtained via exact enumeration studies of sticky hard sphere packings serve as…

Soft Condensed Matter · Physics 2015-06-22 Robert S. Hoy

We investigate the dependence of cluster abundance $n(>M,r_{cl})$, i.e., the number density of clusters with mass larger than $M$ within radius $r_{cl}$, on scale parameter $r_{cl}$. Using numerical simulations of clusters in the CDM…

Astrophysics · Physics 2009-10-30 Wen Xu , Li-Zhi Fang , Xiang-Ping Wu

We aim to understand the formation of cloud condensation nuclei in oxygen-rich substellar atmospheres by calculating fundamental properties of the energetically most favorable vanadium oxide molecules and clusters. A hierarchical…

Earth and Planetary Astrophysics · Physics 2024-10-02 Helena Lecoq-Molinos , David Gobrecht , J. P. Sindel , Christiane Helling , Leen Decin

Due to the relatively low formation energies and highly mobile characteristics of atomic vacancies in phosphorene, understanding their evolutions becomes crucial for its structural integrity, chemical activities and applications. Herein, by…

Materials Science · Physics 2019-10-10 Yongqing Cai , Shuai Chen , Junfeng Gao , Gang Zhang , Yong-Wei Zhang

We investigate vacuum statistics and stability in random axionic landscapes. For this purpose we developed an algorithm for a quick evaluation of the tunneling action, which in most cases is accurate within 10%. We find that stability of a…

General Relativity and Quantum Cosmology · Physics 2016-04-13 Ali Masoumi , Alexander Vilenkin

Pseudobinary heterostructural alloys of ZnO with MgO or CdO are studied by composing the system locally of clusters with varying ratio of cations. We investigate fourfold (wurtzite structure) and sixfold (rocksalt structure) coordination of…

Materials Science · Physics 2010-06-18 A. Schleife , M. Eisenacher , C. Rödl , F. Fuchs , J. Furthmüller , F. Bechstedt

The stability of two-component clusters consisting of light (Na or K) and heavy (Rb or Cs) alkali atoms formed on helium nanodroplets is studied by femtosecond laser ionization in combination with mass spectrometry. Characteristic stability…

Atomic and Molecular Clusters · Physics 2011-12-19 G. Droppelmann , M. Mudrich , C. P. Schulz , F. Stienkemeier

The theoretical formalism of the local density approximation (LDA) to density functional theory (DFT) has been used to study the electronic and geometric structures of SimCn (1<=m, n<=4;n<=m) clusters. An all electron 6-311++G** basis set…

Atomic and Molecular Clusters · Physics 2007-05-23 Prachi Pradhan , Asok K. Ray

We apply the continuous variable approach to study entangled dynamics of coupled harmonic oscillators interacting with a thermal reservoir and to a deterministic creation of entanglement in an atomic ensemble located inside a high-Q ring…

Quantum Physics · Physics 2010-10-12 Li-hui Sun , Gao-xiang Li , Zbigniew Ficek

An electron diffraction technique is used to study the structure of clusters formed in an isentropically expanding supersonic argon jet. The formation of the hcp phase with increasing cluster size is reliably detected for the first time.…

Atomic and Molecular Clusters · Physics 2007-05-23 Spartak I. Kovalenko , Oleksandr G. Danylchenko , Vladimir N. Samovarov

The structural, electronic, and vibrational thermodynamic properties of the (ZnO)$_n$ (n=2-16) clusters are studied using density functional - full potential computations. The results show, small clusters up to $n=9$ stabilize in the 2D…

Materials Science · Physics 2013-05-28 I. Abdolhosseini Sarsari , S. Javad Hashemifar , Hadi Salamati , Hadi Akbarzadeh

A convenient framework for dealing with hadron structure and hadronic physics in the few-GeV energy range is relativistic quantum mechanics. Unlike relativistic quantum field theory, one deals with a fixed, or at least restricted number of…

Nuclear Theory · Physics 2017-11-15 N. Reichelt , W. Schweiger , W. H. Klink

An atomistically informed mean field cluster dynamics model has been presented to investigate the nucleation and growth of defect loops in irradiated {\alpha}-U. TEM analysis of neutron irradiated {\alpha}-U shows the evolution of SIA and…

Materials Science · Physics 2023-07-17 Sanjoy Kumar Mazumder , Tiankai Yao , Anter El-Azab