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The mechanisms governing mechanical dissipation in amorphous tantala are studied at microscopic scale via Molecular Dynamics simulations, namely by mechanical spectroscopy in a wide range of temperature and frequency. We find that…

Materials Science · Physics 2020-09-24 Francesco Puosi , Francesco Fidecaro , Simone Capaccioli , Dario Pisignano , Dino Leporini

This paper presents a large-scale $ab$ $initio$ simulation study of amorphous silicon hydride ($a$-Si$_{\text{1-x}}$H$_{\text{x}}$) with an emphasis on the structure and properties of the material across a range of hydrogen concentration by…

Materials Science · Physics 2023-09-19 Raymond Atta-Fynn , Somilkumar J. Rathi , Harsh Arya , Parthapratim Biswas

Particle production in ultrarelativistic heavy ion collisions depends on the details of the nucleon density distributions in the colliding nuclei. We demonstrate that the charged hadron multiplicity distributions in isobaric collisions at…

Nuclear Theory · Physics 2020-11-25 Hanlin Li , Hao-jie Xu , Ying Zhou , Xiaobao Wang , Jie Zhao , Lie-Wen Chen , Fuqiang Wang

The consequences of the spontaneous breaking of rotational symmetry are investigated in a field theory model for deformed nuclei, based on simple separable interactions. The crucial role of the Ward-Takahashi identities to describe the…

Nuclear Theory · Physics 2013-05-29 W. Bentz , A. Arima , J. Enders , A. Richter , J. Wambach

A study has been conducted into the mechanisms of evolution of clusters and their subsequent fragmentation under energetic heavy ion bombardment of amorphous graphite. The evolving clusters and their subsequent fragmentation under…

Mesoscale and Nanoscale Physics · Physics 2016-09-14 A. Qayyum , B. Ahmad , M. N. Akhtar , Shoaib Ahmad

Zircons can crystallize in a wide range of physical and chemical conditions. At the same time, they have high stability and durability. Therefore zircons can grow and survive in a variety of geological processes. In addition, the…

Geophysics · Physics 2008-11-26 Xuezhao Bao , Gan Xiaochun

We show that the vibrational entropy can play a crucial role in determining the equilibrium structure of clusters by constructing structural phase diagrams showing how the structure depends upon both size and temperature. These phase…

Condensed Matter · Physics 2007-05-23 Jonathan Doye , Florent Calvo

We perform high-statistics simulations to study the impacts of nuclear structure on the ratios of anisotropic flow observables in $^{208}$Pb+$^{208}$Pb and $^{129}$Xe+$^{129}$Xe collisions at the Large Hadron Collider. Even with $40\%$…

Nuclear Theory · Physics 2024-10-01 Heikki Mäntysaari , Björn Schenke , Chun Shen , Wenbin Zhao

Recent experiments using advanced laser spectroscopy technique revealed that the charge radii of neutron-deficient gold (Au) isotopes exhibit significant changes in ground state deformation: odd-even shape staggering in the $N = 98 \sim…

Nuclear Theory · Physics 2026-03-18 Myeong-Hwan Mun , Eunja Ha , Yong-Beom Choi , Myung-Ki Cheoun

Dependable predictions of the X-ray burst ashes and light curves require a stringent constraint on the composition of the accreted material as an input parameter. Lower metallicity models are generally based on a metal deficient donor and…

High Energy Astrophysical Phenomena · Physics 2020-04-17 J. S. Randhawa , Z. Meisel , S. A. Giuliani , H. Schatz , B. S. Meyer , K. Ebinger , A. A. Hood , R. Kanungo

Non-reciprocal systems exhibit diverse dynamical phases whose character depends on the type and degree of non-reciprocity. In this study, we theoretically investigate dynamical structures in a mixture of non-reciprocally aligning polar…

Soft Condensed Matter · Physics 2024-12-20 Kim L. Kreienkamp , Sabine H. L. Klapp

In this chapter we discuss some possible physical pictures that describe the constitution of the inner crust of compact objects. Different relativistic models both with constant couplings and density dependent ones are used. We calculate…

Different statistical multifragmentation models have been used to study isoscaling, i.e. the factorization of the isotope ratios from two reactions, into fugacity terms of proton and neutron number, R21(N,Z)=Y2(N,Z)/Y1(N,Z)=C*exp(a*N+b*Z).…

This study provides a new insight into the processes which occur when thin film hydrogenated amorphous silicon is subjected to UV laser irradiation in the presence of oxygen. It achieves this by observing the effects of subjecting the films…

Materials Science · Physics 2016-06-02 Saydulla K. Persheyev , James A. Cairns

A geometrical analysis of the stability of nuclei against deformations is presented. In particular, we use Catastrophe Theory to illustrate discontinuous changes in the behavior of nuclei with respect to deformations as one moves in the N -…

Nuclear Theory · Physics 2024-07-23 Samyak Jain , A. Bhagwat

The symmetry and topology of the coincidence structure, i.e. the locus of points in configuration space corresponding to particles in the same position, plays a critical role in extracting universal properties for few-body models with…

Quantum Physics · Physics 2018-07-04 N. L. Harshman , Adam Knapp

High-energy heavy-ion physics and low-energy nuclear structure physics have historically been disconnected fields. The hydrodynamic description of the quark-gluon plasma (QGP) requires input from nuclear structure to model the initial…

Nuclear Theory · Physics 2025-12-08 T. Duguet , G. Giacalone , V. Somà , Y. Zhou

The behavior of an atomic system is influenced by introducing a metallic surface. This work explores how the decay landscape can be altered by the presence of sharp corners. We examine two scenarios: the modified spontaneous decay of a…

Quantum Physics · Physics 2024-10-04 Romuald Kilianski , Robert Bennett

Emergent properties such as nuclear saturation and deformation, and the effects on shell structure due to the proximity of the scattering continuum and particle decay channels are fascinating phenomena in atomic nuclei. In recent years, ab…

Nuclear Theory · Physics 2016-05-19 G. Hagen , M. Hjorth-Jensen , G. R. Jansen , T. Papenbrock

We study how macroscopic superpositions of coherent states produced by the nondissipative dynamics of binary mixtures of ultracold atoms are affected by atom losses. We identify different decoherence scenarios for symmetric or asymmetric…

Quantum Physics · Physics 2015-06-15 Krzysztof Pawlowski , Dominique Spehner , Anna Minguzzi , Giulia Ferrini
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