Article
Physics, Fluids & Plasmas
Frantisek Slanina, Miroslav Kotrla, Karel Netocny
Summary: This study models the system of a driven dense colloid mixture in a tube with diameter comparable to particle size. By generalizing the asymmetric simple exclusion process (ASEP) model, the exclusion constraint is relaxed and two species of particles with different sizes and transport coefficients are considered. The nearest-neighbor correlations are calculated using a variant of the Kirkwood approximation, which provides accurate results compared to numerical simulations. However, the Kirkwood approximation is found to be useless for long-range correlations, as it predicts exponential decay while simulation data indicate algebraic decay.
Article
Physics, Nuclear
V. Kukulin, V. N. Pomerantsev, O. A. Rubtsova, M. N. Platonova, I. T. Obukhovsky
Summary: This article presents the dibaryon concept for nuclear force, proposing that the attraction between nucleons at medium distances is primarily due to the s-channel exchange of an intermediate six-quark state. A microscopic six-quark description of the NN system is used to construct the NN interaction model, with symmetry aspects playing a significant role. The model successfully describes the elastic phase shifts and inelasticities of NN scattering in various partial waves and energy ranges, and the parameters of the intermediate six-quark states are consistent with known dibaryon resonances.
Article
Chemistry, Physical
Andrea Zen, Tai Bui, Tran Thi Bao Le, Weparn J. Tay, Kuhan Chellappah, Ian R. Collins, Richard D. Rickman, Alberto Striolo, Angelos Michaelides
Summary: The aggregation of clay particles in aqueous solution is an important process in both environmental and technological fields. However, the mechanism behind this process at the atomistic level, which involves complex and dynamic interactions such as solvent-mediated electrostatic, hydrogen-bonding, and dispersion interactions, is still poorly understood. In this study, molecular dynamics simulations were conducted to investigate the interactions between kaolinite nanoparticles in pure and salty water. The simulations revealed highly anisotropic behavior, with the interaction between nanoparticles changing from attractive to repulsive depending on their relative orientation. The results of this study highlight the diversity of clay nanoparticle interactions and provide valuable insights for the development of coarse-grained models of clay nanoparticle aggregation.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Astronomy & Astrophysics
R. Sekhar Chivukula, Pawin Ittisamai, James Osborne, Elizabeth H. Simmons
Summary: This study extends the simplified limits framework to a multidimensional parameter space of branching ratios to address ambiguity in cases where multiple channels contribute to the resonance production, and it can combine constraints from experimental searches with different observed final states. The visualization of constraints in a three-dimensional space of branching ratios is achieved through ternary diagrams, utilizing the inherent unitarity of the sum of the resonance's branching ratios.
Article
Optics
Khadijeh Miarabbas Kiani, Henry C. Frankis, Andrew P. Knights, Jonathan D. B. Bradley
Summary: We present low-threshold and wide emission wavelength range hybrid-integrated silicon-thulium microdisk lasers based on a pulley-coupled design. The resonators are fabricated on a silicon-on-insulator platform using a standard foundry process, and the gain medium is deposited using a straightforward, low-temperature post-processing step. The lasers demonstrate lasing in 40- and 60-µm diameter microdisks with high output power and bidirectional slope efficiencies. The lasers also exhibit both single-mode and multimode laser emission spanning a range of wavelengths from 1825 to 1939 nm, making them suitable for monolithic silicon photonic integrated circuits.
Article
Physics, Multidisciplinary
M. Mikkelsen, T. Fogarty, Th Busch
Summary: This study investigates the relationship between information scrambling and work statistics for short-range interacting particles in a one-dimensional harmonic trap. It finds that scrambling requires finite interactions and establishes a connection between scrambling properties and induced work fluctuations, which are directly observable in modern cold-atom experiments.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Fluids & Plasmas
Lingxin Zhang, Kai Peng, Xueming Shao, Jian Deng
Summary: This study presents a short-range repulsive force model to tackle near-contact interactions between bubbles during collision, which is simple and validated through experiments, and can be applied to cases with multiple bubbles or droplets.
Article
Physics, Multidisciplinary
Etienne Granet
Summary: We study the transverse field Ising model with additional all-to-all interactions and find that a mean-field treatment of this model becomes exact in the thermodynamic limit, despite the presence of 1D short-range interactions. We show that the eigenstates of the model are coherent states with an amplitude that varies through the Hilbert space, allowing for the computation of local observables with mean-field theory. Furthermore, we identify different phases and unique features of this 1D model, including a second-order phase transition at finite temperature and inverse melting.
Article
Engineering, Chemical
G. Violano, L. Afferrante
Summary: Tribologists have found that long and short-range adhesion have different effects on the pull-off force in viscoelastic fractures. In the case of long-range adhesion, the pull-off force is not affected by the unloading velocity, while in the case of short-range adhesion, the pull-off force increases monotonically with the pulling velocity and reaches a plateau at high speeds.
Article
Mathematics, Applied
Daniele Cassani, Luca Vilasi, Youjun Wang
Summary: This paper studies a class of elliptic equations involving local and nonlocal operators, and analyzes spectral properties, validity of maximum principle, existence, nonexistence, symmetry, and regularity results for weak solutions. The asymptotic behavior of weak solutions as the coupling parameter tends to zero or infinity is also investigated.
ADVANCES IN NONLINEAR ANALYSIS
(2021)
Article
Chemistry, Physical
Corentin Villot, Ka Un Lao
Summary: This study introduces a database called SNCIAA which includes 723 benchmark interaction energies of short-range noncovalent interactions. The commonly used computational methods are systematically assessed and MP2, omega B97M-V, and B3LYP+D4 are found to be the most reliable. SAPT is also recommended with the inclusion of delta MP2 correction.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Physics, Multidisciplinary
W. C. Li, Z. Q. Liu, D. Xie, X. W. Yao
Summary: By using Monte Carlo simulations, we investigated the frustrated J(1)-J(2) classical Heisenberg model on the triangular lattice. Our results show rich magnetic phases in the h(1)-J(2) and h-T phase diagrams, and skyrmion state can be stabilized by J(2). These findings suggest that skyrmion can be driven by competition between short-range interactions in the absence of DM interaction, which may facilitate the design and application of skyrmion devices in the future.
Article
Materials Science, Multidisciplinary
Aaron A. Kohnert, Laurent Capolungo
Summary: The study presents a spectrally-based continuum solution of mechanical fields based on the field dislocation mechanics framework, which accurately describes the elastic fields near dislocation cores in isotropic and anisotropic media.
COMPUTATIONAL MATERIALS SCIENCE
(2021)
Article
Optics
Xin He, Xiaoming Shen, Paul Beckett, Duo Xiao, Xu Liu, Rui Yin
Summary: In this paper, a narrow bandpass filter technology for infrared optical applications is proposed and numerically simulated. The filter, consisting of plasmonic nanostructures and improved induced transmission layers, operates in the wavelength range of 1360 to 5000 nm with a FWHM of less than 10 nm and maximum optical density of around 10. As a result, the filter can distinguish smaller differences in spectrum information and reduce background noise levels even when using an optical amplifier.
Article
Materials Science, Multidisciplinary
Fatma Khammassi, Wajdi Cherif, Aminta Mendoza, Daniel Salazar-Jaramillo, Senentxu Lanceros-Mendez, Mohamed Dammak
Summary: This work investigates the effect of lightly Cr3+-doped ions on the structural, magnetic, and critical behavior of La0.7Ca0.3Mn1-xCrxO3 compounds. The compounds adopt a single phase rhombohedral structure. XRD analysis is used to compare crystallite sizes, and various methods are employed to examine the contributions of crystallite sizes and lattice microstrains. The magnetic data shows a second-order paramagnetic-ferromagnetic phase transition and the presence of a Griffiths Phase.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
