Lena Funcke | CRC 1639 NuMeriQS

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

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

Mon, 01 Jun 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

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

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

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

Toward Scalable Normalizing Flows for the Hubbard Model

Thu, 01 Jan 2026 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

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

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

Simulating Correlated Electrons with Symmetry-Enforced Normalizing Flows

Sun, 01 Jun 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

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

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

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

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.

Hamiltonian Lattice Formulation of Compact Maxwell-Chern-Simons Theory

Mon, 01 Jul 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

C01

Sat, 20 Jan 2024 17:07:25 +0100

This project aims at combining complementary path integral Lagrangian and Hamiltonian methods in order to investigate lattice gauge theories from first principles. For this, efficient digitisations of non-Abelian gauge theories will be investigated and tested, a non-perturbative matching protocol between the Lagrangian and Hamiltonian lattice formulations will be developed and, as a first application, the running coupling constant in an Abelian gauge theory in 2+1 dimensions will be determined. In the long term these developments will offer the possibility to study gauge theories, and in particular quantum chromodynamics, in regions of parameter space not accessible today by using quantum computing and tensor network methods.

C03

Sat, 20 Jan 2024 17:07:25 +0100

This project focuses on using tensor networks, quantum computing, and machine learning to study topological effects in lattice gauge theories (LGTs) of increasing complexity. The initial goal will be the simulation of (2+1)-dimensional LGTs with tensor networks and quantum computing, focusing on compact quantum electrodynamics (QED) with a topological Chern-Simons term. In particular, we aim to map out the phase diagram and study implications for condensed-matter physics, such as topological mass generation and the quantum Hall effect. Moreover, in collaboration with project C02, we will use machine learning enhanced Monte Carlo methods to study the Chern Simons-term in QED. Long-term plans include extending these methods to (3+1)-dimensional LGTs, including Lattice Quantum Chromodynamics with the θ-term.