activity
20232026
most citedFirst-Order Phase Transition of the Schwinger Model with a Quantum Computer

17 citations · 36 across the 10 of their papers we have counts for

collaborators

16 papers

quant-ph2026

Imaginarity as a necessary resource for trainability in QAOA

Syed Muhammad Ali Hassan, Kostas Blekos, Stefan Kühn +2

The quantum approximate optimization algorithm (QAOA) tackles combinatorial problems by tuning a quantum circuit in a classical loop, often guided by gradients. We show that the gr…

hep-lat2025★ 1 cited

Fermion Discretization Effects in the Two-Flavor Lattice Schwinger Model: A Study with Matrix Product States

Tim Schwägerl, Karl Jansen, Stefan Kühn

We present a comprehensive tensor network study of staggered, Wilson, and twisted mass fermions in the Hamiltonian formulation, using the massive two-flavor Schwinger model as a be…

hep-lat2025

(2+1)D quantum electrodynamics at finite density on a quantum computer

Emil Otis Rosanowski, Arianna Crippa, Lena Funcke +3

In this paper, we explore (2+1)D quantum electrodynamics (QED) at finite density on a quantum computer, including two fermion flavors. Our method employs an efficient gauge-invaria…

cs.GR2025

Quantum Brush: A quantum computing-based tool for digital painting

João S. Ferreira, Arianna Crippa, Astryd Park +5

We present Quantum Brush, an open-source digital painting tool that harnesses quantum computing to generate novel artistic expressions. The tool includes four different brushes tha…

quant-ph2024

Gaussian boson sampling for binary optimization

Jean Cazalis, Tirth Shah, Yahui Chai +2

Binary optimization is a fundamental area in computational science, with wide-ranging applications from logistics to cryptography, where the tasks are often formulated as Quadratic…

hep-lat2024

Analysis of the confinement string in (2 + 1)-dimensional Quantum Electrodynamics with a trapped-ion quantum computer

Arianna Crippa, Karl Jansen, Enrico Rinaldi

Compact lattice Quantum Electrodynamics is a complex quantum field theory with dynamical gauge and matter fields and it has similarities with Quantum Chromodynamics, in particular…

quant-ph2024

Quantum computing inspired paintings: reinterpreting classical masterpieces

Arianna Crippa, Yahui Chai, Omar Costa Hamido +2

We aim to apply a quantum computing technique to compose artworks. The main idea is to revisit three paintings of different styles and historical periods: ''Narciso'', painted circ…

cs.SD2024★ 2 cited

Developing a Framework for Sonifying Variational Quantum Algorithms: Implications for Music Composition

Paulo Vitor Itaboraí, Peter Thomas, Arianna Crippa +3

This chapter examines the Variational Quantum Harmonizer, a software tool and musical interface that focuses on the problem of sonification of the minimization steps of Variational…

quant-ph2024★ 2 cited

Benchmarking Variational Quantum Algorithms for Combinatorial Optimization in Practice

Tim Schwägerl, Yahui Chai, Tobias Hartung +2

Variational quantum algorithms and, in particular, variants of the varational quantum eigensolver have been proposed to address combinatorial optimization (CO) problems. Using only…

quant-ph2024★ 2 cited

Concurrent VQE for Simulating Excited States of the Schwinger Model

Yibin Guo, Takis Angelides, Karl Jansen +1

This work explores the application of the concurrent variational quantum eigensolver (cVQE) for computing excited states of the Schwinger model. By designing suitable ansatz circui…

quant-ph2024★ 1 cited

Warm Start of Variational Quantum Algorithms for Quadratic Unconstrained Binary Optimization Problems

Yahui Chai, Karl Jansen, Stefan Kühn +2

Variational Quantum Eigensolver (VQE) is widely used in near-term hardware. However, their performances remain limited by the poor trainability and are dependent on random paramete…

hep-lat2024

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

Arianna Crippa, Simone Romiti, Lena Funcke +4

In this paper, we examine a compact lattice gauge theory in dimensions and present a strategy for studying the running coupling and extracting the non-perturbative $…

quant-ph2023

Gaussian Boson Sampling for binary optimization

Jean Cazalis, Yahui Chai, Karl Jansen +2

In this study, we consider a Gaussian Boson Sampler for solving a Flight Gate Assignment problem. We employ a Variational Quantum Eigensolver approach using the Conditional Value-a…

hep-lat2023★ 17 cited

First-Order Phase Transition of the Schwinger Model with a Quantum Computer

Takis Angelides, Pranay Naredi, Arianna Crippa +4

We explore the first-order phase transition in the lattice Schwinger model in the presence of a topological -term by means of the variational quantum eigensolver (VQE). Using tw…

quant-ph2023★ 11 cited

Fermionic wave packet scattering: a quantum computing approach

Yahui Chai, Arianna Crippa, Karl Jansen +4

Quantum computing provides a novel avenue towards simulating dynamical phenomena, and, in particular, scattering processes relevant for exploring the structure of matter. However,…

cs.ET2023

Variational Quantum Harmonizer: Generating Chord Progressions and Other Sonification Methods with the VQE Algorithm

Paulo Vitor Itaboraí, Tim Schwägerl, María Aguado Yáñez +4

This work investigates a case study of using physical-based sonification of Quadratic Unconstrained Binary Optimization (QUBO) problems, optimized by the Variational Quantum Eigens…