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We study non-equilibrium phases for interacting two-dimensional self-propelled particles with isotropic pair-wise interactions using a persistent kinetic Monte Carlo (MC) approach. We establish the quantitative phase diagram, including the…

Soft Condensed Matter · Physics 2019-04-17 Juliane U. Klamser , Sebastian C. Kapfer , Werner Krauth

The interactions between a relativistic magnetized collisionless shock and dense clumps have been expected to play a crucial role on the magnetic field amplification and cosmic-ray acceleration. We investigate this process by…

High Energy Astrophysical Phenomena · Physics 2022-09-07 Sara Tomita , Yutaka Ohira , Shigeo S. Kimura , Kengo Tomida , Kenji Toma

Once weakly-interacting massive particles (WIMPs) are unambiguously detected in direct-detection experiments, the challenge will be to determine what one may infer from the data. Here, I examine the prospects for reconstructing the local…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-29 Annika H. G. Peter

Dynamics of ethylene autoignition and Deflagration-to-Detonation Transition (DDT) in a one-dimensional shock tube are numerically investigated using a skeletal chemistry including 10 species and 10 reactions. Different combustion modes are…

Fluid Dynamics · Physics 2022-08-24 Zhiwei Huang , Huangwei Zhang

We study the effect of a direct Giant Dipole Resonance ($GDR$) excitation in intermediate dinuclear systems with exotic shape and charge distributions formed in charge asymmetric fusion entrance channels. A related enhancement of the $GDR$…

Nuclear Theory · Physics 2016-09-08 V. Baran , M. Cabibbo , M. Colonna , M. Di Toro , N. Tsoneva

A combination of reaction-diffusion models with moving-boundary problems yields a system in which the diffusion (spreading and penetration) and reaction (transformation) evolve the system's state and geometry over time. These systems can be…

Computational Engineering, Finance, and Science · Computer Science 2020-08-26 Mojtaba Barzegari , Liesbet Geris

Thermal spike model (TSM) is presently a widely accepted mechanism of swift heavy ion (SHI) - matter interaction. It provides explanation to various SHI induced effects including mixing across interfaces. The model involves electron-phonon…

Materials Science · Physics 2019-09-04 Paramita Patra , S. A. Khan , M. Bala , D. K. Avasthi , S. K. Srivastava

Dynamical dipole $\gamma$-ray emission in heavy-ion collisions is explored in the framework of the quantum molecular dynamics model. The studies are focused on systems of $^{40}$Ca bombarding $^{48}$Ca and its isotopes at different incident…

Nuclear Theory · Physics 2010-11-19 H. L. Wu , W. D. Tian , Y. G. Ma , X. Z. Cai , J. G. Chen , D. Q. Fang , W. Guo , H. W. Wang

We analyze the generation of kinetic instabilities and their effect on the energization of ions in non-relativistic, oblique collisionless shocks using a 3D-3V simulation by $\texttt{dHybridR}$, a hybrid particle-in-cell code. At…

Plasma Physics · Physics 2023-07-26 Collin R. Brown , James Juno , Gregory G. Howes , Colby C. Haggerty , Sage Constantinou

Current high resolution observations of galaxy clusters reveal a dynamical intracluster medium (ICM). The wealth of structures includes signatures of interactions between active galactic nuclei (AGN) and the ICM, such as cavities and…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 E. Roediger , M. Brueggen , A. Simionescu , H. Boehringer , S. Heinz

Formulating a consistent theory for rigid-body dynamics with impacts is an intricate problem. Twenty years ago Stewart published the first consistent theory with purely inelastic impacts and an impulsive friction model analogous to Coulomb…

Computational Engineering, Finance, and Science · Computer Science 2017-10-16 Tobias Preclik , Sebastian Eibl , Ulrich Rüde

We discuss halo-independent constraints on the Inelastic Dark Matter (IDM) scenario, in which a Weakly Interaction Massive Particle (WIMP) state $\chi$ with mass $m_\chi$ interacts with nuclear targets by upscattering to a heavier state…

High Energy Physics - Phenomenology · Physics 2023-11-23 Sunghyun Kang , Arpan Kar , Stefano Scopel

The sensitizing effect of cavities in the form of microbubbles on the shock initiation of a homogeneous liquid explosive is studied computationally. While the presence of voids in an explosive has long been known to induce so-called hot…

Fluid Dynamics · Physics 2020-09-28 XiaoCheng Mi , Louisa Michael , Nikolaos Nikiforakis , Andrew J. Higgins

The specific heats of exactly solvable alternating layered planar Ising models with strips of width $m_1$ lattice spacings and ``strong'' couplings $J_1$ sandwiched between strips of width $m_2$ and ``weak'' coupling $J_2$, have been…

Statistical Mechanics · Physics 2013-10-30 Helen Au-Yang , Michael E. Fisher

Investigation of the effect of the dynamical stage of heavy-ion collisions indicates that the increasing width of the initial isospin distributions is reflected by a significant modification of the isoscaling slope for the final isotopic…

Nuclear Theory · Physics 2009-11-11 M. Veselsky

Due to a strong Coulomb interaction, excitons dominate the excitation kinetics in 2D materials. While Coulomb-scattering between electrons has been well studied, the interaction of excitons is more challenging and remains to be explored. As…

Materials Science · Physics 2021-01-27 Daniel Erkensten , Samuel Brem , Ermin Malic

We study two different ways to analyze the Hawking evaporation of a Schwarzschild-de Sitter black hole. The first one uses the standard approach of surface gravity evaluated at the possible horizons. The second method derives its results…

General Relativity and Quantum Cosmology · Physics 2009-11-18 I. Arraut , D. Batic , M. Nowakowski

Topological materials occupy the central stage in the modern condensed matter physics because of their robust metallic edge or surface states protected by the topological invariant, characterizing the electronic band structure in the bulk.…

Mesoscale and Nanoscale Physics · Physics 2021-08-05 Bitan Roy , Vladimir Juricic

We introduce a geometric scaling relation that characterizes the local scale behavior of correlations using the informational distance $d_E = K_0/\sqrt{I}$, where $I$ is the mutual information. We define a geometric conversion factor, $G…

Statistical Mechanics · Physics 2025-12-02 Beau Leighton-Trudel

We study kink scattering processes in the (1+1)-dimensional $\varphi^6$ model in the framework of the collective coordinate approximation. We find critical values of the initial velocities of the colliding kinks. These critical velocities…

High Energy Physics - Theory · Physics 2016-02-12 Vakhid A. Gani , Alexander E. Kudryavtsev , Mariya A. Lizunova