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We study the influence of the softness of the interparticle interactions on the fragility of a glass former, by considering three model binary mixture glass formers. The interaction potential between particles is a modified Lennard-Jones…

无序系统与神经网络 · 物理学 2012-06-19 Shiladitya Sengupta , Filipe Vasconcelos , Frédéric Affouard , Srikanth Sastry

In this work, we explore the statistical physics of colloidal particles that interact with electrolytes via ion-specific interactions. Firstly we study particles interact weakly with electrolyte using linear response theory. We find that…

软凝聚态物质 · 物理学 2016-10-12 Mingnan Ding , Yihao Liang , Xiangjun Xing

Van der Waals interactions between two neutral but polarizable systems at a separation $R$ much larger than the typical size of the systems are at the core of a broad sweep of contemporary problems in settings ranging from atomic, molecular…

高能物理 - 唯象学 · 物理学 2017-06-14 Nora Brambilla , Vladyslav Shtabovenko , Jaume Tarrús Castellà , Antonio Vairo

In the quest for better energy storage solutions, the role of designing effective electrodes is crucial. Previous research has shown that using materials like single-side fluorinated graphene can improve the stability of ion insertion in…

材料科学 · 物理学 2024-08-28 Yu-Hsiu Lin , Jose L. Mendoza-Cortes

Wavepacket propagation calculations are reported for the interaction of a Rydberg hydrogen atom ($n=2-8)$ with Cu(111) and Cu(100) surfaces (represented by a Chulkov potential), in comparison with a Jellium surface. Both copper surfaces…

化学物理 · 物理学 2015-04-30 E. So , J. A. Gibbard , T. P. Softley

We present and discuss some ideas concerning an ``average-pair-density functional theory'', in which the ground-state energy of a many-electron system is rewritten as a functional of the spherically and system-averaged pair density. These…

材料科学 · 物理学 2009-11-11 Paola Gori-Giorgi , Andreas Savin

We study the semiclassical dynamics of interacting electrons in a biased crystal lattice. A complex dynamical scenario emerges from the interplay between the Coulomb and the external electric fields. When the electrons are far apart, the…

The interaction of optical fields sculpted on the nano-scale with matter may not be described by the dipole approximation since the fields vary appreciably across the molecular length scale. Rather than incrementally adding higher…

量子物理 · 物理学 2015-10-28 Vladimir Y. Chernyak , Prasoon Saurabh , Shaul Mukamel

We investigate the interparticle potential between spin-0, -1/2 and -1 sources interacting in modified electrodynamics in the non-relativistic regime. By keeping terms of $\mathcal{O}( |{\bf p}|^2/m^2 )$ in the amplitudes, we obtain spin-…

高能物理 - 理论 · 物理学 2017-02-02 G. P. de Brito , P. C. Malta , L. P. R. Ospedal

Electronic charge delocalization on the molecular backbones of ionic liquid-forming ions substantially impacts their molecular polarizabilities. Density functional theory calculations of polarizabilities and volumes of many cations and…

软凝聚态物质 · 物理学 2024-01-31 C. D. Rodriguez-Fernandez , E. Lopez Lago , C. Schroder , L. M. Varela

We address the interactions between optical solitons in the system with longitudinally varying nonlocality degree and nonlinearity strength. We consider a physical model describing light propagation in nematic liquid crystals featuring a…

斑图形成与孤子 · 物理学 2009-11-13 Fangwei Ye , Yaroslav V. Kartashov , Lluis Torner

The augmented potential introduced by Levy and Zahariev [Phys. Rev. Lett. 113, 113002 (2014)] is shifted with respect to the standard exchange-correlation potential of Kohn-Sham density functional theory by a density-dependent constant that…

化学物理 · 物理学 2018-01-17 Stefan Vuckovic , Mel Levy , Paola Gori-Giorgi

The surface or contact potential at the water liquid-vapor interface is discussed in relation to determinations of absolute ion hydration free energies and distributions of ions near the interface. It is shown that, rather than the surface…

软凝聚态物质 · 物理学 2012-09-21 Thomas L. Beck

Inclusive electron scattering off 4He is investigated for low and medium energy and momentum transfers. The final state interaction, given by the simple semirealistic Malfliet-Tjon potential, is treated rigorously applying the Lorentz…

Using the formalism of the conditional amplitude, we study the response part of the exchange-correlation potential in the strong-coupling limit of density functional theory, analysing its peculiar features and comparing it with the response…

化学物理 · 物理学 2019-03-26 Sara Giarrusso , Stefan Vuckovic , Paola Gori-Giorgi

Understanding the electrodes' surface morphology influence on the ions' distribution is essential for designing the supercapacitors with enhanced energy density characteristics. We develop a model for the structure of electrolytes near the…

统计力学 · 物理学 2021-06-30 Timur Aslyamov , Konstantin Sinkov , Iskander Akhatov

Different computational methods are employed to evaluate elastic (rotationally summed) integral and differential cross sections for low energy (below about 10 eV) positron scattering off gas-phase C$_2$H$_2$ molecules. The computations are…

We re-calculate electron yields and stopping power of protons colliding with surfaces of NaCl-type insulators. In this article, the projectile is considered to move taking into account the static and polarization potentials with all the…

原子物理 · 物理学 2009-02-10 Andrea J. Garcia , J. E. Miraglia

We consider a cloud of fermionic atoms in an optical lattice described by a Hubbard model with an additional linear potential. While homogeneous interacting systems mainly show damped Bloch oscillations and heating, a finite cloud behaves…

量子气体 · 物理学 2011-07-01 Stephan Mandt , Akos Rapp , Achim Rosch

The universal scaling behavior for the electron-impact excitation cross sections of the $2s$ states of hydrogen- and helium-like multicharged ions is deduced. The study is performed within the framework of non-relativistic perturbation…

原子物理 · 物理学 2009-11-13 A. V. Nefiodov , G. Plunien