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Henning Leemhuis (Bergische Universität Wuppertal)29/09/2026, 17:00Poster
Efficient solutions of large sparse linear systems arising in lattice quantum chromodynamics (LQCD) are essential for modern numerical simulations. In this work, we investigate the use of a direct solver, based on ScaLAPACK, as the coarsest-level solver within the DDalphaAMG software package. Instead of performing an iterative solve on the coarsest grid of the multigrid hierarchy, we employ a...
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Christos Iona (University of Cyprus & The Cyprus Institute)29/09/2026, 17:00Poster
We determine the nucleon axial and tensor charges at the continuum limit by analyzing four $N_f=2+1+1$ twisted mass fermion ensembles, with all quark masses tuned to approximately their physical values. We include both connected and disconnected contributions to determine the isovector and isoscalar charges and their flavor decomposition. Systematic uncertainties from excited-state...
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Georgios Pasias (University of Cyprus)29/09/2026, 17:00Poster
Surface tension driven flows in microchannels underpin numerous microfluidic technologies, including biomedical diagnostics, chemical processing and lab on a chip systems. High-fidelity computational fluid dynamics (CFD) simulations provide detailed predictions of the transient evolution of the liquid–gas interface and associated flow field, but their computational cost limits large-scale...
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Sofie Martins (University of Graz)29/09/2026, 17:00Poster
We present HiRep v2, an open-source software suite for high-performance lattice field theory simulations with dynamical Wilson fermions in higher representations of $SU(N_g)$ gauge groups. This new version fully supports graphics processing unit (GPU) acceleration, optimizing both gauge configuration generation and measurements for NVIDIA and AMD GPUs. HiRep v2 integrates improved gauge and...
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Bolun Hu29/09/2026, 17:00Poster
We present an ongoing lattice-QCD study of higher Mellin moments of pion and kaon parton distribution functions using the gradient-flow method. Building on previous work, we use twisted-mass ensembles with lighter pion masses and plan calculations at four lattice spacings. We investigate the flow-time dependence, continuum extrapolation, excited-state effects, and other systematic...
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Syed Muhammad Ali Hassan (The Cyprus Institute)29/09/2026, 17:00Poster
The quantum approximate optimization algorithm (QAOA) prepares candidate solutions to combinatorial optimization problems by alternating between operations that encode the objective function and a mixing operation that shift probability between candidate solutions. Gradient-based training of such circuits requires estimating how the measured cost changes when a circuit angle is varied. We...
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Ivana Boljat (Croatian Geological survey)29/09/2026, 17:00Poster
Karst aquifers are complex systems characterised by nonlinear recharge responses and heterogeneous groundwater flow. This study investigates whether unsupervised machine learning can independently distinguish deep karst from shallow karst (fluviokarst) in the northern Croatian Dinaric region.
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A multiparametric dataset comprising 5-year records of spring discharge, water temperature and... -
Jose Miguel Jimenez Merchan (Bergische Universität Wuppertal)29/09/2026, 17:00Poster
We study trace estimation for disconnected quark loop contributions in lattice QCD, focusing on single-time-slice traces such as $ \operatorname{Tr}\left[\Gamma_5(t)D^{-1}(t,t)\right]$. We build on the standard use of hopping-parameter expansions (HPE) in trace estimation, where the truncated term has bounded graph range and can be evaluated exactly using distance-(d) probing.
We first...
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Priyajit Jana (University of Cyprus, The Cyprus Institute)29/09/2026, 17:00Poster
We present the results of the nucleon helicity moments and generalized form factors in the isovector and isoscalar channels computed within lattice QCD. We analyzed four ensembles with $N_f=2+1+1$ twisted mass clover-improved fermions with the mass of the quarks tuned to their physical mass. The four ensembles have lattice spacings approximately $a=0.05 \,\text{fm}, 0.06 \,\text{fm}, 0.07...
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Srijit Paul (University of Cyprus)29/09/2026, 17:00Poster
The origin and flavor structure of the nucleon mass are fundamental questions in strong interaction physics. The nucleon sigma terms quantify the response of the nucleon mass to variations of the quark masses and provide direct access to its scalar matrix elements. We present a lattice QCD determination of the light, strange, and charm sigma terms using twisted-mass fermions at the physical...
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Yan Li29/09/2026, 17:00Poster
We determine the momentum fraction and angular momentum carried by quarks and gluons in the proton in lattice QCD. We use four ensembles simulated with up, down, strange and charm quarks with their masses tuned to their physical values.
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These ensembles have similar physical volume and different lattice spacings allowing us to take the continuum limit directly at the physical pion mass... -
Andreas Konstantinou (University of Cyprus & The Cyprus Institute)29/09/2026, 17:00Poster
In this poster we present the study of Λ-hyperon to proton transition in Lattice QCD. We use the computed form factors from LQCD, and apply it to a number of problems. For example, we compute the decay rate of the electron semi-leptonic decay, and by combining it with the experimental data we obtain $V_{us}$. Furthermore, we use this decay channel to search for possible physics beyond the...
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Anastasios Zeniou (University of Cyprus)29/09/2026, 17:00Poster
We present an inverse-design method that determines the chemical heterogeneity profile of a surface required to transport a droplet along a prescribed path. Droplet dynamics are simulated by employing a reduced-order model that reduces the lubrication equation to a system of ODEs for the Fourier harmonics of the contact line, and integrating this stiff system with an implicit adaptive...
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Mr Naveen Kumar Subramanian (The Cyprus Institute)29/09/2026, 17:00Poster
Abstract
Wetting dynamics plays a central role in applications such as coating processes, microfluidics, and green energy technologies. Despite extensive theoretical work, several aspects of the influence of droplet size on wetting dynamics remain unclear, particularly how nanoscale dynamics evolve toward macroscopic behaviour as the system size increases.
In this contribution, we...
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Ferenc Pittler (The Cyprus Institute)29/09/2026, 17:00Poster
The $\Delta(1232)$ resonance is the lowest-lying baryon excitation and provides an important testing ground for our understanding of hadron structure. In this talk, we will present recent lattice-QCD results on the resonance at the physical pion mass.
Using gauge ensembles with $N_f=2+1+1$ dynamical quark flavors, we investigate both the finite-volume spectrum of the resonance and its...
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Mr Stylianos Gregoriou (The Cyprus Institute)29/09/2026, 17:00Poster
We present a practical approach for implementing the overlap Dirac operator in Lattice QCD, combining the diagonal Kenney-Laub (KL) rational iterates for approximating the matrix sign function with the Brillouin operator as overlap kernel. The partial fraction decomposition of the KL iterates enables multi-shift conjugate gradient solvers, with all weights and shifts given by closed-form...
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