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We investigate the statistical mechanics of an inhomogeneous Coulomb fluid composed of charged particles with static polarizability. We derive the weak- and the strong-coupling approximations and evaluate the partition function in a planar…

软凝聚态物质 · 物理学 2013-04-22 Vincent Démery , David S. Dean , Rudolf Podgornik

Monolayer \delta-doped structures in silicon have attracted renewed interest with their recent incorporation into atomic-scale device fabrication strategies as source and drain electrodes and in-plane gates. Modeling the physics of…

材料科学 · 物理学 2013-05-03 Daniel W. Drumm , Lloyd C. L. Hollenberg , Michelle Y. Simmons , Mark Friesen

The puzzling electronic correlation effects in the sodium cobaltate system are studied by means of the combination of density functional theory and the rotationally invariant slave boson (RISB) method in a cellular-cluster approach.…

强关联电子 · 物理学 2013-04-30 Christoph Piefke , Lewin Boehnke , Antoine Georges , Frank Lechermann

We explore structural correlations of strongly asymmetric mixtures of binary charged colloids within the primitive model of electrolytes considering large charge and size ratios of 10 and higher. Using computer simulations with explicit…

软凝聚态物质 · 物理学 2022-07-13 Elshad Allahyarov , Hartmut Löwen , Alan Denton

Crystallization of a classical two-dimensional one-component plasma (electrons interacting with the Coulomb repulsion in a uniform neutralizing positive background) is investigated with a molecular dynamics simulation. The positional and…

强关联电子 · 物理学 2009-10-31 Satoru Muto , Hideo Aoki

The use of machine learning interatomic potentials (MLIPs) in simulations of materials is a state-of-the-art approach, which allows achieving nearly \textit{ab initio} accuracy with orders of magnitude less computational cost.…

材料科学 · 物理学 2021-10-28 R. E. Ryltsev , N. M. Chtchelkatchev

We consider two-dimensional Coulomb systems confined in a disk with ideal dielectric boundaries. In particular we study the two-component plasma in detail. When the coulombic coupling constant $\Gamma=2$ the model is exactly solvable. We…

统计力学 · 物理学 2007-05-23 Gabriel Tellez

Structures, physical and chemical properties of V doped Co$_{13}$ clusters have been studied in detail using density functional theory based first-principles method. We have found anomalous variation in stability of the doped clusters with…

原子与分子团簇 · 物理学 2009-08-18 Soumendu Datta , Mukul Kabir , Tanusri Saha-Dasgupta , Abhijit Mookerjee

Localized plasmonic modes of metallic nanoparticles may hybridize like those of atoms forming a molecule. However, the rapid decay of the plasmonic fields outside the metal severely limits the range of these interactions to tens of…

光学 · 物理学 2013-03-05 Adi Salomon , Yehiam Prior , Radoslaw Kolkowski , Joseph Zyss

Strong short ranged positional correlations involving counterions can induce a net attractive force between negatively charged strands of DNA, and lead to the formation of ion pairs in dilute ionic solutions. But the long range of the…

统计力学 · 物理学 2009-11-11 Yng-Gwei Chen , John D. Weeks

Based on an analysis of the short range chemical environment of each atom in a system, standard machine learning based approaches to the construction of interatomic potentials aim at determining directly the central quantity which is the…

材料科学 · 物理学 2015-08-05 S. Alireza Ghasemi , Albert Hofstetter , Santanu Saha , Stefan Goedecker

Two-dimensional classical cluster of particles interacting through a screened Coulomb potential is studied. This system can be used as a model for "dusty particles" in high-frequency discharge plasma. For systems consisting of N = 2 - 40…

介观与纳米尺度物理 · 物理学 2009-10-31 G. E. Astrakharchik , A. I. Belousov , Yu. E. Lozovik

The interplay of spin-orbit interactions and Coulomb correlations has become a hot topic in condensed matter theory. Here, we review recent advances in dynamical mean-field theory-based electronic structure calculations for iridates and…

强关联电子 · 物理学 2017-06-28 Cyril Martins , Markus Aichhorn , Silke Biermann

We investigate the effect of local Coulomb correlations on electronic transport through a variety of coupled quantum dot systems connected to Fermi liquid leads. We use a newly developed functional renormalization group scheme to compute…

介观与纳米尺度物理 · 物理学 2007-05-23 C. Karrasch , T. Enss , V. Meden

We have carried out theoretical investigations of electron correlation effects on the atomic properties of the Ca atom trapped inside an attractive spherically symmetric potential well of an endohedral fullerene C$_{60}$ cluster.…

原子物理 · 物理学 2018-07-24 S. Bharti , L. Sharma , B. K. Sahoo , P. Malkar , R. Srivastava

Corrections to elastic moduli, including the effective shear modulus, of a solid neutron star crust due to electron screening are calculated. At any given mass density, the crust is modelled as a body-centred cubic Coulomb crystal of fully…

太阳与恒星天体物理 · 物理学 2016-03-23 D. A. Baiko

We present a personal view on the current state of statistical mechanics of Coulomb fluids with special emphasis on the interactions between macromolecular surfaces, concentrating on the weak and the strong coupling limits. Both are…

软凝聚态物质 · 物理学 2015-06-16 Ali Naji , Matej Kanduč , Jan Forsman , Rudolf Podgornik

This work presents a first time accurate calculation of the magnetic dipole hyperfine structure constants for the ground state and some low-lying excited states of Pb$^+$. By comparing different levels of approximation with experimental…

原子物理 · 物理学 2009-11-10 Bijaya K. Sahoo , Rajat K. Chaudhuri , B. P. Das , Holger Merlitz , Debashis Mukherjee

This work explores a simple approximation to describe isolated impurity scattering in a strongly correlated metal. The approximation combines conventional one electron scattering theory and the Dynamic Mean Field Theory to describe strong…

强关联电子 · 物理学 2007-06-12 Pascal Lederer , Marcelo J. Rozenberg

The physical and chemical properties of metal nanoparticles differ significantly from those of free metal atoms as well as from the properties of bulk metals, and therefore, they may be viewed as a transition regime between the two physical…

适应与自组织系统 · 物理学 2007-05-23 Horacio G. Rotstein , Amy Novick-Cohen , Rina Tannenbaum