Article
Chemistry, Multidisciplinary
Khairiah Mohd Mokhtar, Rafiziana Md Kasmani, Che Rosmani Che Hassan, Mahar Diana Hamid, Mohamad Iskandr Mohamad Nor, Mohd Usman Mohd Junaidi, Norazana Ibrahim
Summary: The study explored the explosion severity of aluminum and silver powder, showing that smaller particle sizes result in higher severity, and that silver powder exhibits lower severity compared to aluminum due to agglomeration effect. Agglomeration reduces specific surface area, impacting oxidation reactions of metal powder. Silver powder demonstrated sluggish oxidation compared to aluminum, as evidenced in thermogravimetric curves. X-ray photoelectron spectroscopy analysis showed silver powder producing Ag and Ag2O reactions, while aluminum powder only resulted in Al2O3 products.
Article
Multidisciplinary Sciences
Jian-Ping Lv, Wanwan Xu, Yanan Sun, Kun Chen, Youjin Deng
Summary: The study focuses on the logarithmic finite-size scaling of the O(n) universality class at the upper critical dimensionality, establishing an explicit scaling form for the free-energy density and conjecturing a two-length behavior for the critical two-point correlation function. Extensive Monte Carlo simulations provide evidence for these predictions, which have practical applications in experimental systems.
NATIONAL SCIENCE REVIEW
(2021)
Article
Physics, Multidisciplinary
Elizabeth J. Dresselhaus, Bjorn Sbierski, Ilya A. Gruzberg
Summary: The study of the IQHT transition is challenging due to the difficulty in determining critical exponents; Zirnbauer's conformal field theory provides insights for explaining the IQHT transition; Numerical evidence and model parameters are crucial for understanding the impact on critical exponents.
Article
Physics, Multidisciplinary
Long Zhang, Chengxiang Ding
Summary: The nondivergence of the generalized Gruneisen ratio (GR) at a quantum critical point (QCP) is proposed as a universal thermodynamic signature of self-duality. The study explores how the Kramers-Wannier-type self-duality is manifested in the finite-size scaling behavior of thermodynamic quantities in the quantum critical regime. The results indicate that the identification of proper symmetry sectors is necessary for the numerical diagnosis of self-dual QCP.
CHINESE PHYSICS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Daryl Darwan, Li Jun Lim, Tian Wang, Hadhi Wijaya, Zhi-Kuang Tan
Summary: A method of preparing highly luminescent visible-light-emitting quantum dots using a low-temperature nanocluster synthesis approach has been developed. The strong confinement effects in the few-atom-wide nanoclusters are responsible for the significant spectral shift from the near-infrared to the visible region, suggesting broader-than-expected optical tuning may be achievable in other quantum-confined semiconductor systems.
Article
Physics, Multidisciplinary
A. Zabalo, M. J. Gullans, J. H. Wilson, R. Vasseur, A. W. W. Ludwig, S. Gopalakrishnan, David A. Huse, J. H. Pixley
Summary: This study investigates the measurement-induced phase transitions in quantum many-body systems and finds that generic and Clifford MIPTs for qubits belong to different universality classes.
PHYSICAL REVIEW LETTERS
(2022)
Article
Computer Science, Interdisciplinary Applications
Hui Jiang, Yuan-De Zhou, Jin-Ting Wang, Chu-Han Zhang
Summary: This paper conducts a micromechanical investigation into the progressive size reduction mechanism and its effects on macro responses of granular assemblies during confined compression tests, using numerical studies based on the cohesive zone model. The study proposes a scaling method to consider the contributions of fine products, and finds that the breakage degree is dependent on input energy. Furthermore, a quantitative micro-analysis of contact force distribution is presented, showing the different roles of fragmentation in micro-mechanical response of particle assemblies.
COMPUTERS AND GEOTECHNICS
(2021)
Article
Multidisciplinary Sciences
Yuan Tang, Shiran Bao, Wei Guo
Summary: Generic scaling laws in classical fluids, such as Kolmogorov's 5/3 law, are milestone achievements in turbulence research. However, little is currently known about possible scaling laws for velocity correlations and trajectory statistics of vortices in quantum-fluid turbulence.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Optics
Ling-Feng Zhang, Ling-Zhi Tang, Zhi-Hao Huang, Guo-Qing Zhang, Wei Huang, Dan-Wei Zhang
Summary: This study utilizes machine learning to study the unique topological properties in non-Hermitian systems, training neural networks to predict relevant topological invariants with nearly 100% accuracy. Demonstrations in various models show the capability of neural networks to explore topological invariants and predict them successfully in untouched phase regions.
Article
Chemistry, Physical
Yuqing Cheng, Mengtao Sun
Summary: Plexciton is a new hybridized energy state formed by the coupling of a plasmon and an exciton, and its optical properties are described using a classic oscillator model. In the case of strong coupling, absorption spectra show a phenomenon similar to electromagnetically induced transparency, and the splitting behavior of modes depends on the effective number of electrons and resonance coupling. Photoluminescence spectra exhibit significant changes in strong coupling, while the emission intensity of the exciton is greatly enhanced by the plasmon. Comparisons with published experiments validate the model's validity. This study is important for understanding Plexciton mechanism and the development of new applications.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Yuqing Cheng, Mengtao Sun
Summary: Plexciton is a new hybridized energy state formed by the coupling between a plasmon and an exciton. The optical properties of both the exciton and plexciton are described using a classic oscillator model, and the coupling case of plexciton is investigated in detail.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Physics, Multidisciplinary
Jiarui Zhao, Yan-Cheng Wang, Zheng Yan, Meng Cheng, Zi Yang Meng
Summary: We develop a nonequilibrium increment method to calculate the Renyi entanglement entropy and study its scaling behavior at the deconfined critical point through large-scale quantum Monte Carlo simulations. Our results reveal fundamental differences between deconfined quantum critical points and quantum critical points described by unitary conformal field theories, as the corner correction exponent in the former case is found to be negative, in contrast to the positivity condition of the Renyi entanglement entropy.
PHYSICAL REVIEW LETTERS
(2022)
Article
Optics
Stanislaw Soltan, Adam Bednorz
Summary: A quantum decaying system can exhibit its nonclassical behavior through noninvasive measurements. The correlations of weak measurements in the noninvasive limit violate the classical bound for a universal class of systems, which is related to the incompatibility between exponential decay and unitary evolution. This phenomenon can be experimentally observed using continuous weak measurements and a wide range of observables. The nonclassical nature of such a system allows it to be treated as a potential quantum resource.
Review
Physics, Multidisciplinary
Davide Rossini, Ettore Vicari
Summary: This review discusses the many-body physics at quantum phase transitions, covering both equilibrium and out-of-equilibrium behaviors as well as effects of dissipative interactions. Different types of transitions exhibit distinct scaling behaviors, with the peculiar feature of extreme sensitivity to boundary conditions at first-order quantum transitions.
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2021)
Article
Physics, Multidisciplinary
Benjamin Geiger, Juan Diego Urbina, Klaus Richter
Summary: In this study, the fate of 1/N expansions in unstable many-body quantum systems is considered, showing the emergence of e(2 lambda t)/N as a renormalized parameter governing the quantum-classical transition. The results provide formal grounds for a conjectured multiexponential form of out-of-time-ordered correlators in scrambling many-body hyperbolic systems.
PHYSICAL REVIEW LETTERS
(2021)
