Research works

Searching for symmetric mass generation with staggered fermions in four dimensions

We conduct numerical simulations to map out the phase diagram and critical behavior of a lattice Higgs model composed of two massless staggered fermion fields forming a doublet under a global $SU(2)$ and coupled to a scalar field in the adjoint representation of the group. The sc...

Nanoparticle Surface Curvature Impacts the Synthesis of Polymer Brushes

Abstract Surface-initiated ring-opening metathesis polymerization (SI-ROMP) is a powerful method for grafting polymers with different macromolecular architectures and chemical compositions onto surfaces, offering the potential to design hybrid materials with tailored properties....

Spin-Inversion Degeneracies in Restricted Inspiral Waveforms for LISA

Spin inversions appear in several settings. Analytical work predicts a single spin flip during unequal-mass supermassive binary inspiral, while numerical relativity and post-Newtonian calculations show repeated flip-flop motion in comparable-mass binaries. Secular spin evolution...

Efficient Nonequilibrium Electron Dynamics from First-Principles: Leveraging Koopmans Spectral Functionals and Wannier Localization

Abstract We present an efficient first-principles approach for simulating the nonequilibrium electron dynamics in extended systems beyond the linear regime. The method combines Koopmans-compliant functionals, which provide accurate quasiparticle band structures, with the real-tim...

Prospects for direct detection of ultralight dark matter candidates in deci-Hz band with IndIGO-D

We investigate the sensitivity of IndIGO-D, a proposed space-based decihertz gravitational-wave interferometer, to different classes of ultralight dark matter. IndIGO-D will probe the $\sim0.01$--$10~\mathrm{Hz}$ frequency band between those accessible to current ground- and futu...

Scarred discrete time crystal in a periodically driven dimerized spin chain

We investigate the emergence of a scarred discrete time crystal (SDTC) phase in a periodically driven dimerized spin chain. While generic interacting Floquet systems are expected to thermalize according to the eigenstate thermalization hypothesis (ETH), we demonstrate that this s...

Ocular Vestibular Evoked Myogenic Potential Response Patterns for Characterizing Vestibular Dysfunction in Peripheral Vestibular Disorders

Ocular vestibular evoked myogenic potential (oVEMP) testing provides electrophysiological information on otolithic and superior vestibular pathway function, but its clinical interpretation often remains limited to a binary normal or abnormal judgment. This study developed and app...

Matter Currents Are the Pointer Observables of Quantum Field Theory

Decoherence and einselection do not specify, among the field operators of the Standard Model, what realises the pointer basis for Born-rule probabilities on a physical observer. Since observers in relativistic quantum theory are themselves composite fermionic matter, we identify...

Subvacuum jamming for secure communication

Artificial-noise jamming improves physical-layer security by degrading an eavesdropper's channel, but the injected noise also interferes with the legitimate receiver. We introduce a correlated-jamming protocol based on classical and quantum correlations that suppresses this self-...

Noise-robust discrimination of incoherent point sources with spatial-mode demultiplexing

We theoretically predict and experimentally demonstrate that a reduced spatial-mode demultiplexing (SPADE) measurement using only the two lowest-order Hermite-Gaussian modes exhibits remarkable robustness against background noise in discriminating between a single source and two...

Classification-constrained retrieval of PM 2.5 vertical profiles from fluorescence-raman-mie polarization lidar

Abstract. The vertical distribution of PM2.5 during urban haze events is jointly affected by aerosol composition, boundary-layer structure, and regional transport. Empirical PM2.5 retrievals based on lidar-derived extinction coefficients can be biased by the optical contribution...

Uncertainty-Aware Tidal Disruption Event Classification : A Host-Agnostic Probabilistic Random Forest Approach

Abstract The classification of Tidal Disruption Events in large-scale photometric surveys is challenging because deterministic machine learning models produce overconfident misclassifications under varying data quality and low signal-to-noise conditions. Existing lightcurve-based...

Transformasi Digital Administrasi Kepegawaian UIN Ar-Raniry Banda Aceh: Pengembangan Sistem Presensi Berbasis Web Menggunakan Metode Agile

Digital transformation in personnel administration has become an urgent need in public higher education institutions, including at UIN Ar-Raniry Banda Aceh. This study aims to develop a web-based employee attendance system that can improve the efficiency, accuracy, and transparen...

A Deep Look at the Ultra-Faint Milky Way Satellite Virgo III with Rubin Observatory Data Preview 2

We analyze the ultra-faint Milky Way satellite Virgo III using data from the Vera C. Rubin Observatory Data Preview 2 (DP2). Virgo III was observed in the Rubin “Cosmic Treasure Chest” (M49) First Look field, which contains 924 visits in the u,g,r,i bands comprising ~10.5hrs of e...

Quantized Mereology

This paper investigates quantized mereology, which merges quantum information theory with classical mereology, the formal analysis of the part-whole relationship. It emphasizes that information about crisp mereological relations is captured by classical bits, whereas mereological...

Temporary carbon storage can mitigate slow-responding climate changes

Abstract Carbon removal and storage is central to many net-zero commitments, yet its durability, particularly for nature-based methods, is uncertain due to disturbance risks. Previous work shows that carbon storage-years (the time-integrated quantity of carbon storage) are propor...

Electrostatic control enables robust helical edge-channel transport in III-V quantum spin Hall insulators

Quantum spin Hall transport in InAs/GaInSb-based two-dimensional topological insulators can be limited by parasitic bulk and edge contributions. We demonstrate that these limitations are effectively mitigated through electrostatic control in dual-gated InAs/GaInSb/InAs trilayer q...

Linking molecular composition of organic aerosols to reactive oxygen species formation using an MCR-VK framework

Abstract. Reactive oxygen species (ROS) formation by atmospheric fine particulate matter (PM) is widely implicated in adverse health effects, yet the molecular determinants of particle-level ROS formation remain poorly constrained, largely due to the chemical complexity of organi...

First-principles electronic transport properties of Ti and Ti-6Al-4V for modeling ultrashort-pulse laser ablation

Predictive modeling of ultrashort-pulse laser ablation requires temperature-dependent material parameters derived from the electronic structure, namely the electronic thermal conductivity, electron-phonon coupling, and heat capacity. These parameters are well documented for eleme...

The Impact of Healthcare Leadership on Patient-Centred Care: A Systematic Review

Patient-centred care places patients’ preferences, needs, and values at the heart of clinical decisions and is recognised as essential for high-quality healthcare. Leadership is accepted as a critical influence on organisational culture and staff behaviour, yet the mechanisms thr...