CRC 1639 NuMeriQS

Ulf-G. Meißner Senior Professor Celebration

Fri, 02 Oct 2026 00:00:00 +0000

On Friday, October second, we have celebrated decades of scholary and scientific excellence of Professor Dr. Dr. h.c. Ulf-G. Meißner on the occasion of Prof. Meißner’s first days as a senior professor. Karlheinz Langanke, Professor at TU Darmstadt and scientific director at the GSI, as well as Joachim Schultze, scietific director of the DZNE gave pointed speaches honoring the career of Prof. Meißner in front of a full lecture hall in the HISKP.

We wish Prof. Meißner all the best for his future, and hope for his continued mentorship and support.

PhD Defense Christiane Groß

Tue, 08 Sep 2026 00:00:00 +0000

Christiane Groß defended her thesis after working partially in NuMeriQS.

Congratulations and all the best for the future!

No-go theorems for dual Hamiltonians of Non-Abelian Lattice Gauge Theories

Tue, 01 Sep 2026 00:00:00 +0000

Suzuki-Trotter Decompositions and other Methods for Quantum Time Evolution

Tue, 01 Sep 2026 00:00:00 +0000

PhD Defense Tom Frömbgen

Wed, 19 Aug 2026 00:00:00 +0000

Tom Frömbgen was the first doctoral student in NuMeriQS who defended his PhD thesis. The thesis was supervised by Barbara Kirchner and Jürgen Dölz as part of project A03.

Congratulations and all the best for the future!

B02 Summer Hackathon 2026

Mon, 17 Aug 2026 10:00:00 +0000

Many thanks to the Institute of Computer Science for giving us access to one of their computer pools!

B02 Summer Hackathon 2026

Mon, 17 Aug 2026 00:00:00 +0000

In August 2026, the [“B02”] project team, members of other NuMeriQS projects and external collaborators got together at the Institute of Computer Science at the University of Bonn for four days of intense work and discussion on the Kronos library for lattice field theory.
Development of the library is at a crucial stage with multiple essential features encompassing around 40k lines of code close to being ready to merge.
Because of their complexity and central nature, many design decisions need to be discussed in depth which is really only possible in person.
NuMeriQS funding enabled external collaborators to join for the entire duration of the hackathon, making the event highly productive and successful.

Many thanks to the Institute of Computer Science for giving us access to one of their computer pools!

A first look at Structured-Multiscale Algebraic Multigrid for Lattice Field Theory

Sat, 01 Aug 2026 00:00:00 +0000

Disorder-enhanced compressibility of Floquet random quantum circuits

Wed, 01 Jul 2026 00:00:00 +0000

Fluctuation-Induced Bistability in the Dissipative Dynamics of Generic Cavity-Matter Quantum Systems

Wed, 01 Jul 2026 00:00:00 +0000

Future Requirements of Lattice Field Theory Calculations on European High-Performance Computing Facilities

Wed, 01 Jul 2026 00:00:00 +0000

A Finite-Volume Scheme for the Continuum Extrapolation of Lattice Step-Scaling in (2+1)D Hamiltonian U(1) Gauge Theory

Mon, 01 Jun 2026 00:00:00 +0000

Confining Flux Tube in the Trace Deformed (2+1) Dimensional SU(2) Gauge Theory

Mon, 01 Jun 2026 00:00:00 +0000

Toward Hamiltonian simulations of Maxwell-Chern-Simons theory: constant modes and gauge field truncation

Mon, 01 Jun 2026 00:00:00 +0000

Floquet engineering of quantum transport through two driven impurities

Fri, 01 May 2026 00:00:00 +0000

Higher Mellin Moments of the Unpolarized PDF of the Pion and the Kaon from Lattice QCD

Fri, 01 May 2026 00:00:00 +0000

Mapping twist fields to local operators via tensor networks

Fri, 01 May 2026 00:00:00 +0000

Testing machine-learned distributions against Monte Carlo data for the QCD chiral phase transition

Fri, 01 May 2026 00:00:00 +0000

The origin of excited states of the $\Lambda$ baryon at the SU(3) point from Lattice QCD

Fri, 01 May 2026 00:00:00 +0000

Discrete symmetries of Feynman integrals

Wed, 01 Apr 2026 00:00:00 +0000

Economical and Ecological Impact of Sector Coupling Applied to Computing Clusters

Wed, 01 Apr 2026 00:00:00 +0000

Stable and Efficient Algorithms for the Fermion Determinant

Wed, 01 Apr 2026 00:00:00 +0000

Stable Determinant Monte Carlo Simulations at Large Inverse Temperature $Î²$

Wed, 01 Apr 2026 00:00:00 +0000

The structure of the lightest positive-parity charmed mesons from LQCD

Wed, 01 Apr 2026 00:00:00 +0000

An update on the HVP contribution to $g_Î¼-2$ in isoQCD from ETMC

Sun, 01 Mar 2026 00:00:00 +0000

Hamiltonian Lattice QED$_3$ with One and Two Flavors of Wilson Fermions: Topological Structure and Response

Sun, 01 Mar 2026 00:00:00 +0000

Hamiltonian Monte Carlo enhanced by Exact Diagonalization

Sun, 01 Mar 2026 00:00:00 +0000

Lattice Field Theory Analysis of the Chiral Heisenberg Model

Sun, 01 Mar 2026 00:00:00 +0000

Normalizing-flow-based density of states for (1+1)D U(1) lattice gauge theory with a $Î¸$-term

Sun, 01 Mar 2026 00:00:00 +0000

Spectral reconstruction techniques, their shortcomings and relevance to the electric conductivity coefficient

Sun, 01 Mar 2026 00:00:00 +0000

Tackling the Sign Problem in the Doped Hubbard Model with Normalizing Flows

Sun, 01 Mar 2026 00:00:00 +0000

International Scientific Cooperation Award for Ulf-G. Meißner

Tue, 03 Feb 2026 00:00:00 +0000

NuMeriQS project leader Ulf-G. Meißner has been honored by the Chinese Academy of Sciences for his outstanding contributions to scientific collaboration. More details can be found in the University of Bonn’s announcement.

The NuMeriQS CRC congratulates Ulf-G. Meißner for this achievment!

Defect engineering spin centers in interacting many-body Su-Schrieffer-Heeger chains

Sun, 01 Feb 2026 00:00:00 +0000

Intersection theory and canonical differential equations

Sun, 01 Feb 2026 00:00:00 +0000

Reducing the Gate Count with Efficient Trotter-Suzuki Schemes

Sun, 01 Feb 2026 00:00:00 +0000

Scaling and Luescher Term in a non-Abelian (2+1)d SU$(2)$ Quantum Link Model

Sun, 01 Feb 2026 00:00:00 +0000

The Lambda 1405 at the $SU(3)$ point in lattice QCD

Sun, 01 Feb 2026 00:00:00 +0000

A multifidelity Monte Carlo approach for simulating the diffusion coefficient of water. I. Forward problem

Thu, 01 Jan 2026 00:00:00 +0000

A scalable flow-based approach to mitigate topological freezing

Thu, 01 Jan 2026 00:00:00 +0000

Building Nanoplastic Models for Molecular Calculations

Thu, 01 Jan 2026 00:00:00 +0000

Carbon Polarization and Carbon Nanotube Stacking Impacts the Behavior of Water in Nanoconfinement

Thu, 01 Jan 2026 00:00:00 +0000

Comments on Baryon Transition Form Factors

Thu, 01 Jan 2026 00:00:00 +0000

Efficient Trotter-Suzuki Schemes for Long-time Quantum Dynamics

Thu, 01 Jan 2026 00:00:00 +0000

Toward Scalable Normalizing Flows for the Hubbard Model

Thu, 01 Jan 2026 00:00:00 +0000

Computational Astrochemistry

Tue, 16 Dec 2025 15:15:00 +0000

Serena Viti will talk on

Computational Astrochemistry

In Astrochemsitry - the field that studies molecules in space - building accurate chemical models is central to our understanding of how molecules can form and be destroyed in space. The accuracy of such models however is heavily dependent on the availability of complete chemical gas-phase and solid-state reaction networks. Due to the very non linear nature of chemistry in space, as well as the complex interactions between the chemistry and the physics of the gas and dust, determining the right sets of species and possible reactions between them is not trivial. In this talk I shall give an overview of the challenges we face when designing and optimizing networks as well as possible avenues for solutions, including sensitivity analysis, data-driven methods and machine learning.

Promit Ray’s title is

Smarter Molecules, Safer Models: A Virtual Chemistry AI Lab for Governed Scientific Discovery

AI now plays a central role in proposing new molecules, optimizing materials, and accelerating numerical modeling, yet its scientific reliability ultimately depends on the structure and integrity of the underlying data. In this talk, I present a practical end-to-end workflow that integrates Vivian for interactive molecular and materials exploration, ChemLabFlow for standardized chemical and experimental data management, and the VAIL (Virtual AI Lab) as a governed

Infinite Matrix Product States for (1+1)-Dimensional Gauge Theories

Mon, 15 Dec 2025 17:15:00 +0000

(1+1)-dimensional gauge theories provide tractable toy models for studying non-perturbative phenomena of importance in (3+1)-dimensional field theories such as QCD. In the past decade, tensor network methods have enabled new lattice studies of such theories in the Hamiltonian formalism. However, existing approaches have been limited in their ability to maintain manifest translation invariance and locality for non-abelian theories. In this talk, we present link-enhanced matrix product operators (LEMPOs), a novel construction that acts on both the physical and virtual spaces of symmetric matrix product states. LEMPOs allow us to represent the lattice Hamiltonians of (abelian or non-abelian) gauge theories in a local and manifestly translation-invariant form, enabling studies on infinite lattices. We demonstrate this method with recent results for the Schwinger model and adjoint QCD2.

Projected Entangled Pair States for Lattice Gauge Theories with Dynamical Fermions

Tue, 09 Dec 2025 15:15:00 +0000

Gauge theories underpin much of modern physics, from the Standard Model to effective descriptions of strongly interacting systems. While quantum chromodynamics is perturbative at high energies, nonperturbative tools are required in the low-energy regime. Lattice gauge theory provides a gauge-invariant regularization well suited for this purpose. By using Euclidean Monte Carlo simulations, this formulation has enabled major progress. Yet important regimes — such as finite-density fermionic systems and real-time dynamics — remain difficult due to the sign problem and the Euclidean nature of standard algorithms. These challenges have motivated alternative approaches, including Hamiltonian formulations amenable to quantum simulation and variational methods. Among the most powerful classical variational techniques are tensor networks. In this talk, I will give a short introduction into tensor networks and introduce a specific Ansatz, Gauged Gaussian Projected Entangled Pair States (GGPEPS). GGPEPS are gauge-invariant tensor-network, that allow efficient contraction in higher spatial dimension, and avoid the sign problem due to a variational Monte Carlo procedure. I will outline their construction, discuss key analytical features, and demonstrate their numerical performance on a (2+1)d Z2 lattice gauge theory with dynamical fermionic matter.

Computing quantum entanglement with machine learning

Mon, 01 Dec 2025 00:00:00 +0000

Denaturation of Water in Alkaline Melts

Mon, 01 Dec 2025 00:00:00 +0000

Hadron Physics Opportunities at FAIR

Mon, 01 Dec 2025 00:00:00 +0000

MakroLyzer: A Graph-Based Software to Comb through Molecular Hairballs using the Example of Nanoplastics

Mon, 01 Dec 2025 00:00:00 +0000

Multi-fidelity learning for atomistic models via trainable data embeddings

Mon, 01 Dec 2025 00:00:00 +0000

Random matrix perspective on probabilistic error cancellation

Mon, 01 Dec 2025 00:00:00 +0000

Roadmap: 2D Materials for Quantum Technologies

Mon, 01 Dec 2025 00:00:00 +0000

Sunset integrals with up to three mass scales in chiral perturbation theory: a comparative study of the Mellin-Barnes representation technique

Mon, 01 Dec 2025 00:00:00 +0000

Three-loop banana integrals with four unequal masses

Mon, 01 Dec 2025 00:00:00 +0000

Lattice 25 Plenary by Stefan Krieg

Thu, 06 Nov 2025 00:00:00 +0000

NuMeriQS project leader Stefan Krieg has been invited to give and delivered a plenary talk at the 42 International Symposium on Lattice Field Theory on Machines and Exascale Computing.

The Lattice Conference is the central yearly conference for Lattice QCD and related fields. In 2025 it took place in Mumbai, India.

Pair scattering from time-modulated impurity in the Bose-Hubbard model

Sat, 01 Nov 2025 00:00:00 +0000

Short-range production of three bottom mesons

Sat, 01 Nov 2025 00:00:00 +0000

Tucano: Advancing neural text generation for Portuguese

Sat, 01 Nov 2025 00:00:00 +0000

A Comprehensive Stress Test of Truncated Hilbert Space Bases against Green's function Monte Carlo in U(1) Lattice Gauge Theory

Wed, 01 Oct 2025 00:00:00 +0000

Emergence of the $\pi(1300)$ Resonance from Lattice QCD

Wed, 01 Oct 2025 00:00:00 +0000

First simultaneous global QCD analysis of kaon and pion parton distributions with lattice QCD constraints

Wed, 01 Oct 2025 00:00:00 +0000

Model-independent mass determination of near-threshold states from short-range production

Wed, 01 Oct 2025 00:00:00 +0000

Overcoming Ergodicity Problems of the Hybrid Monte Carlo Method using Radial Updates

Wed, 01 Oct 2025 00:00:00 +0000

Response of a General Restricted Open-Shell Hartree-Fock Wave Function. I: Formalism, Analytic Gradients, and Electric and Magnetic Response Properties

Wed, 01 Oct 2025 00:00:00 +0000

Sample-Based Krylov Quantum Diagonalization for the Schwinger Model on Trapped-Ion and Superconducting Quantum Processors

Wed, 01 Oct 2025 00:00:00 +0000

The Truncated Hankel Correlator Method

Wed, 01 Oct 2025 00:00:00 +0000

Three-body universality in the B meson sector

Wed, 01 Oct 2025 00:00:00 +0000

Using Exascale Computing to Explain the Delicate Balance of Nuclear Forces in the Universe

Wed, 01 Oct 2025 00:00:00 +0000

NuMeriQS Retreat 2025

Mon, 15 Sep 2025 10:00:00 +0000

The second NuMeriQS retreat will take place from September 15 to September 18, 2025, at Kloster Steinfeld.

Second NuMeriQS Retreat

Mon, 15 Sep 2025 00:00:00 +0000

From September 15 to September 18, 2025 we met for the second NuMeriQS Retreat, which took place at Kloster Steinfeld in the Eifel.

The first day was reserved for the NuMeriQS early career researchers. On the second day we had two very intersting talks by external researchers: Julia Westermayr and Jennifer Schober. Moreover, we had two introductory presenatations, one by Frank Neese on the coupled cluster algorithm and a second one by Thomas Luu and Carsten Urbach on Lattice QCD for dummies. The status of the single projects was presented in short talks, amended by posters. The method convenors presented ideas on how to extend their applicabilities.

Hamiltonian Lattice Gauge Theories: Status, Novel Developments and Applications

Mon, 01 Sep 2025 09:00:00 +0000

This NuMeriQS workshop - co-organised with CQTA and ECT* took place at ECT* in September 2025 focused on the status, theoretical developments, and first applications of Hamiltonian Lattice Gauge theories.

We had a very fruitful meeting with participants from Europe, USA, and Japan. With keynote lectures in the mornings by internationally highly visible researchers, and talks by the individual participants thereafter, many relevant topics were discussed in an open and constructive atmosphere. Also early career researchers had the opportunity to either talk or present their work in the poster session.

The details of the programme can be found on its indico page.

(2+1)D Quantum Electrodynamics at Finite Density on a Quantum Computer

Mon, 01 Sep 2025 00:00:00 +0000

Canonical differential equations and intersection matrices

Mon, 01 Sep 2025 00:00:00 +0000

Collins-Soper Kernel and Reduced Soft Function in Lattice QCD

Mon, 01 Sep 2025 00:00:00 +0000

Phase Diagram and dynamical phases of self organization of a Bose--Einstein condensate in a transversely pumped red-detuned cavity

Mon, 01 Sep 2025 00:00:00 +0000

Quantum process tomography of a compressed time evolution circuit on superconducting quantum processors

Mon, 01 Sep 2025 00:00:00 +0000

Steady state diagram of interacting fermionic atoms coupled to dissipative cavities

Mon, 01 Sep 2025 00:00:00 +0000

Trento Workshop on Hamiltonian Lattice Gauge Theories

Mon, 01 Sep 2025 00:00:00 +0000

NuMeriQS co-organised from September 1 to September 5, 2025 a workshop at the ECT* in Trento, Italia on a topic at the heart of NuMeriQS: Hamiltonian Lattice Gauge Theories: Status, Novel Developments, and Applications.

With Christian Bauer, Stefan Kühn, Enrico Rinaldi and Martin Savaga we could invite internationally highly visible researchers to deliver keynote lectures at the beginning of the first four workshop days. The workshop was perceived as very useful: in a very open and collaborative atmosphere the current status of the field was assessed, and novel ideas were discussed.

Beyond Pairwise Interactions: How Interfacial Polarization Modulates Water Flow in Graphene Nanochannels

Fri, 01 Aug 2025 00:00:00 +0000

ConfRank plus : Extending Conformer Ranking to Charged Molecules

Fri, 01 Aug 2025 00:00:00 +0000

Coupled-channel contributions to the GDH sum rule from the Jülich-Bonn approach

Fri, 01 Aug 2025 00:00:00 +0000

Explicit Modeling of Electronic Polarization Reveals Water-Mediated Screening of Ion Adsorption at Hexagonal Boron Nitride Interfaces

Fri, 01 Aug 2025 00:00:00 +0000

Formulation of Polarizable Force Fields to Model Simple Ionic Liquid/Graphite Interfaces

Fri, 01 Aug 2025 00:00:00 +0000

Generalized Parton Distributions from Lattice QCD with Asymmetric Momentum Transfer: Unpolarized Quarks at Nonzero Skewness

Fri, 01 Aug 2025 00:00:00 +0000

Induced Chirality and Vibrational Optical Activity in an Ionic-Liquid Anion

Tue, 01 Jul 2025 00:00:00 +0000

Natural super-orbitals representation of many-body operators

Tue, 01 Jul 2025 00:00:00 +0000

Random matrix theory of charge distribution in disordered quantum impurity models

Tue, 01 Jul 2025 00:00:00 +0000

Universal parameters of the $Λ(1380)$, the $Λ(1405)$ and their isospin partners from a combined analysis of Lattice QCD and experimental results

Tue, 01 Jul 2025 00:00:00 +0000

Simulating Correlated Electrons with Symmetry-Enforced Normalizing Flows

Sun, 01 Jun 2025 00:00:00 +0000

The nature of the $P_c$ states from compositeness criteria

Sun, 01 Jun 2025 00:00:00 +0000

NuMeriQS members successful in Excellence Strategy

Wed, 21 May 2025 00:00:00 +0000

The University of Bonn won support for eight clusters of excellence. Project leaders of NuMeriQS play central roles in the clusters Matter and Light for Quantum Computing: ML4Q, HCM, and Color meets Flavor.

Congratulations to all successful cluster initiatives!

Quantum Workshop

Mon, 12 May 2025 09:00:00 +0000

From May 12 to May 14, 2025, NuMeriQS researchers participated in the Quantum Workshop at DESY Zeuthen.

Over three days of stimulating talks and discussions, researchers from different NuMeriQS working groups and DESY Zeuthen exchanged ideas about their ongoing work. This fruitful interaction led to valuable insights and accelerated progress across multiple research projects. It also strengthened and deepened communication between the NuMeriQS working groups and DESY. Moreover, the workshop provided early-career researchers with the opportunity to engage in in-depth discussions and learn from experienced scientists.

Beyond the scientific program, social activities such as shared dinners and a stroll through Treptower Park provided valuable opportunities for discussing and networking among all participants.

Accelerating multigrid with streaming chiral SVD for Wilson fermions in lattice QCD

Thu, 01 May 2025 00:00:00 +0000

Calculation of the axial-vector coupling constant $g_A$ to two loops in covariant chiral perturbation theory

Thu, 01 May 2025 00:00:00 +0000

Generalized Parton Distributions from Lattice QCD with Asymmetric Momentum Transfer: Tensor Case

Thu, 01 May 2025 00:00:00 +0000

SESaMo: Symmetry-Enforcing Stochastic Modulation for Normalizing Flows

Thu, 01 May 2025 00:00:00 +0000

A Path to Quantum Simulations of Topological Phases: (2+1)D Wilson Fermions Coupled To U(1) Background Gauge Fields

Tue, 01 Apr 2025 00:00:00 +0000

Efficient Implementation of Approximate Fourth Order N-Electron Valence State Perturbation Theory

Tue, 01 Apr 2025 00:00:00 +0000

Fully ergodic simulations using radial updates

Tue, 01 Apr 2025 00:00:00 +0000

Lattice QCD Study of Pion Electroproduction and Weak Production from a Nucleon

Tue, 01 Apr 2025 00:00:00 +0000

Lessons Learned on Obtaining Reliable Dynamic Properties for Ionic Liquids

Tue, 01 Apr 2025 00:00:00 +0000

Hans Maier-Leibnitz Price for Lena Funcke

Mon, 31 Mar 2025 00:00:00 +0000

The DFG awarded the prestigious Hans Maier-Leibnitz Price for early carreer researchers to our NuMeriQS project leader Lena Fucke. Congratulations!

NuMeriQS members win most exciting project prices

Wed, 26 Mar 2025 00:00:00 +0000

Aniket Sen, a postdoctoral researcher in NuMeriQS, is part of a team which has won the most exciting project price awarded at the occasion of the first birthday of Marvin, the supercomputer of the University of Bonn. The second price was awarded to Katrin Drysch, a NuMeriQS doctoral researcher in the group of Barbara Kirchner. More details can be found on the event webpage.

$\eta$, $\eta^\prime$ mesons from lattice QCD in fully physical conditions

Sat, 01 Mar 2025 00:00:00 +0000

Dynamics in Hamiltonian Lattice Gauge Theory: Approaching the Continuum Limit with Partitionings of SU$(2)$

Sat, 01 Mar 2025 00:00:00 +0000

Energy Efficiency trends in HPC: what high-energy and astrophysicists need to know

Sat, 01 Mar 2025 00:00:00 +0000

Exclusion of a diquark-antidiquark structure for the lightest positive-parity charmed mesons

Sat, 01 Mar 2025 00:00:00 +0000

From Light-Cone to Supersonic Propagation of Correlations by Competing Short- and Long-Range Couplings

Sat, 01 Mar 2025 00:00:00 +0000

Matching Lagrangian and Hamiltonian Simulations in (2+1)-dimensional U(1) Gauge Theory

Sat, 01 Mar 2025 00:00:00 +0000

Multilevel Generative Samplers for Investigating Critical Phenomena

Sat, 01 Mar 2025 00:00:00 +0000

Resolving space-time structures of quantum impurities with a numerically-exact algorithm using few-body revealing

Sat, 01 Mar 2025 00:00:00 +0000

Symmetry resolved out-of-time-order correlators of Heisenberg spin chains using projected matrix product operators

Sat, 01 Mar 2025 00:00:00 +0000

Adaptive Observation Cost Control for Variational Quantum Eigensolvers

Sat, 01 Feb 2025 00:00:00 +0000

Bayesian Parameter Shift Rule in Variational Quantum Eigensolvers

Sat, 01 Feb 2025 00:00:00 +0000

Chiral rank-$k$ truncations for the multigrid preconditioner of Wilson fermions in lattice QCD

Sat, 01 Feb 2025 00:00:00 +0000

Exploring Group Convolutional Networks for Sign Problem Mitigation via Contour Deformation

Sat, 01 Feb 2025 00:00:00 +0000

International Lattice Data Grid 2.0: Status and Progress

Sat, 01 Feb 2025 00:00:00 +0000

Isovector axial and pseudoscalar form factors from twisted mass lattice QCD at the physical point

Sat, 01 Feb 2025 00:00:00 +0000

Photoproduction of the E plus hyperon using linearly polarized photons with CLAS

Sat, 01 Feb 2025 00:00:00 +0000

Reproducibility and Open Science in Lattice Quantum Field Theory

Sat, 01 Feb 2025 00:00:00 +0000

Smeared $R$-ratio in isospin symmetric QCD with Low Mode Averaging

Sat, 01 Feb 2025 00:00:00 +0000

Large-scale simulations of lattice QCD for nucleon structure using Nf

Wed, 01 Jan 2025 00:00:00 +0000

Machine-Learning-Enhanced Optimization of Noise-Resilient Variational Quantum Eigensolvers

Wed, 01 Jan 2025 00:00:00 +0000

Simulating the Hubbard Model with Equivariant Normalizing Flows

Wed, 01 Jan 2025 00:00:00 +0000

The Physicist's Guide to the HMC

Wed, 01 Jan 2025 00:00:00 +0000

Valence leading isospin breaking contributions to $a_\mu^HVP-LO$

Wed, 01 Jan 2025 00:00:00 +0000

Floquet physics and Lattice fermions

Fri, 13 Dec 2024 13:15:00 +0000

t.b.a.

Wed, 11 Dec 2024 14:15:00 +0000

Quantum sampling on a quantum annealer for large volumes in the strong coupling limit for gauge group U(3)

Sun, 01 Dec 2024 00:00:00 +0000

A perspective on the future of quantum chemical software: the example of the ORCA program package

Fri, 01 Nov 2024 00:00:00 +0000

ConfRank: Improving GFN-FF Conformer Ranking with Pairwise Training

Fri, 01 Nov 2024 00:00:00 +0000

Exponential speed up in Monte Carlo sampling through Radial Updates

Fri, 01 Nov 2024 00:00:00 +0000

High-precision Quantum Monte-Carlo study of charge transport in a lattice model of molecular organic semiconductors

Fri, 01 Nov 2024 00:00:00 +0000

On the equivalence of Prony and Lanczos methods for Euclidean correlation functions

Fri, 01 Nov 2024 00:00:00 +0000

Small-scale Hamiltonian optimization of interpolating operators for Lagrangian lattice quantum field theory

Fri, 01 Nov 2024 00:00:00 +0000

Strange and charm quark contributions to the muon anomalous magnetic moment in lattice QCD with twisted-mass fermions

Fri, 01 Nov 2024 00:00:00 +0000

Machine-Learning-Based Sampling in Lattice Field Theory and Quantum Chemistry

Mon, 21 Oct 2024 14:00:00 +0000

This NuMeriQS workshop is co-organised by the TRA Matter. More details and the possiblity to register can be found on the workshop indico page.

Physics Show on Tour to Ljubljana and Trieste

Mon, 07 Oct 2024 00:00:00 +0000

From September 21-29, 2024 the The Physics Show of the university Bonn has been on its first international tour since the outbreak of the COVID-19 pandemic.

The group of 20 students and university employees lead by Prof. Herbert Dreiner and Timo Poller visited Ljubljana and Trieste. In both places we performed the Particle Physics Show What’s (the) matter? twice. The shows in Ljubljana took place in the theatre Cankarjev Dom on September 23, while in Trieste the shows were performed at the Revoltella Museum on September 27. All the shows were sold out and very well perceived by the audience.

In addition, the physics students and Postdocs of the Universtiy of Ljubljana were given the opportunity to attend a workshop under the supervision of the Physics Show members. In small groups they discovered a number of unusual physical experiments hands on and they designed short sketches demonstrating and explaining the experiments in an entertaining fashion.

The Physics Show is co-funded by the CRC 1639 NuMeriQS.

First NuMeriQS Retreat

Wed, 02 Oct 2024 00:00:00 +0000

From September 31 to October 29, 2024 the first NuMeriQS Retreat took place at the Bethe Center for Theoretical Physics.

With Martin Savage (Seattle) and Moritz Helias (Aachen and FZJ), we had two inspiring external speakers. With presentations by all projects the communication and interaction between the diverse NuMeriQS working groups was further fostered.

During the poster session questions could be discussed in more detail. Moreover, early career researchers had the possibility to discuss their research with experienced NuMeriQS scientiests

Flow-based Sampling for Entanglement Entropy and the Machine Learning of Defects

Tue, 01 Oct 2024 00:00:00 +0000

Post-measurement Quantum Monte Carlo

Tue, 01 Oct 2024 00:00:00 +0000

The adsorption of drugs on nanoplastics has severe biological impact

Tue, 01 Oct 2024 00:00:00 +0000

NuMeriQS Retreat 2024

Mon, 30 Sep 2024 09:00:00 +0000

Please save the date for the first NuMeriQS Retreat. It will take place in the Bethe Center for Theoretical Physics. The indico web page of the meeting will be used for registration and timetable.

First-principles quantum Monte Carlo study of charge-carrier mobility in organic molecular semiconductors

Sun, 01 Sep 2024 00:00:00 +0000

Global Data-Driven Determination of Baryon Transition Form Factors

Sun, 01 Sep 2024 00:00:00 +0000

Hybrid Oscillator-Qubit Quantum Processors: Simulating Fermions, Bosons, and Gauge Fields

Sun, 01 Sep 2024 00:00:00 +0000

Fingerprints of supersymmetric spin and charge dynamics observed by inelastic neutron scattering

Thu, 01 Aug 2024 00:00:00 +0000

Self-duality from twisted cohomology

Thu, 01 Aug 2024 00:00:00 +0000

DanceQ: High-performance library for number conserving bases

Mon, 01 Jul 2024 00:00:00 +0000

Experimental observation of repulsively bound magnons

Mon, 01 Jul 2024 00:00:00 +0000

Hamiltonian Lattice Formulation of Compact Maxwell-Chern-Simons Theory

Mon, 01 Jul 2024 00:00:00 +0000

Level statistics of the one-dimensional dimerized Hubbard model

Mon, 01 Jul 2024 00:00:00 +0000

The $\omega$-meson from lattice QCD

Mon, 01 Jul 2024 00:00:00 +0000

Twisted Riemann bilinear relations and Feynman integrals

Mon, 01 Jul 2024 00:00:00 +0000

Single Particle Spectrum of Doped $C_20H_12$-Perylene

Sat, 01 Jun 2024 00:00:00 +0000

First CRC 1639 NuMeriQS Publications

Wed, 15 May 2024 00:00:00 +0000

We are proud to announce the first CRC 1639 publications.

Code generation in ORCA: progress, efficiency and tight integration

Wed, 01 May 2024 00:00:00 +0000

Effective theory for graphene nanoribbons with junctions

Wed, 01 May 2024 00:00:00 +0000

Exploration of the LHCb $P_c$ states and possible resonances in a unitary coupled-channel model

Wed, 01 May 2024 00:00:00 +0000

NuMeriQS Kickoff Meeting

Wed, 17 Apr 2024 14:00:00 +0000

In the afternoon of Wednesday, April 17 2024 we will have a kickoff meeting for our newly funded collaborative research centre CRC1639. It will take place in the lecture hall of the Helmholtz-Institut für Strahlen- und Kernphysik.

After a short welcome, we will have two presentations by international experts on topics at the center of the CRC. Thereafter, we will have a reception.

Everyone is welcome, however, registration is mandatory.

CRC 1639 NuMeriQS Kick-off meeting

Wed, 17 Apr 2024 00:00:00 +0000

On April 27, 2024, we officially kicked of the efforts in NuMeriQS with two very interesting talks by Prof. Anthony Kennedy (University of Edinburgh) and Prof. Peter Coveney (London).

Prof. Kennedy, as one of the inventors of the Hybrid Monte Carlo (HMC) algorithm, gave an interesting historical review of the HMC and its modern applications. Prof. Coveney, a chemist by profession, introduced the audience to uncertainty quantification and its use in large scale molecular dynamics simulations.

Apart from officially starting operation - even though it started of course beginning of April, one of the purposes of the meeting was to introduce the CRC to the wider public of the University of Bonn, and more specifically to the contributing departments. We are happy that the heads of all the contributing departments, i.e. chemistry, computer science, mathematics, and physics, participated in the meeting. Moreover, the TRA Simulation Modelling and the TRA Matter were represented.

There were very interesting discussions during the reception, which took place after the two scientific talks. We look forward to about four more interesting years.

For more details see the meetings indico page.

The convergence of HMC on non-compact Riemannian Manifolds

Tue, 16 Apr 2024 15:15:00 +0000

A Hybrid Monte Carlo study of argon solidification

Mon, 01 Apr 2024 00:00:00 +0000

Coordination Behavior of a Confined Ionic Liquid in Carbon Nanotubes from Molecular Dynamics Simulations

Mon, 01 Apr 2024 00:00:00 +0000

Minimal Autocorrelation in Hybrid Monte Carlo simulations using Exact Fourier Acceleration

Mon, 01 Apr 2024 00:00:00 +0000

Towards determining the (2+1)-dimensional Quantum Electrodynamics running coupling with Monte Carlo and quantum computing methods

Mon, 01 Apr 2024 00:00:00 +0000

CRC 1639 NuMeriQS Kick-off meeting open for registration

Thu, 29 Feb 2024 00:00:00 +0000

The NuMeriQS kickoff meeting will take place in the afternoon of April 17. We are very happy that we could convince two distinguished speakers to introduce two NuMeriQS topics. The corresponding presentations will be accessible to a broader audience. After the scientific part we would be happy to discuss with you sharing some food and drinks.

Please register on the meeting’s indico page as we have only a limited number of places available.

Contact

Tue, 23 Jan 2024 00:00:00 +0000

Imprint

Sun, 21 Jan 2024 00:00:00 +0000

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