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DY: Fachverband Dynamik und Statistische Physik
DY 12: Quantum Coherence and Quantum Information Systems (joint session TT/DY)
DY 12.7: Vortrag
Dienstag, 18. März 2025, 11:30–11:45, H31
Minimal SU(2) models for analog simulation in small-scale superconducting quantum devices — •Lucia Valor1,2,3, Jacquelin Luneau1,2,3, Klaus Liegener1,2,3, Stefan Filipp1,2,3, and Peter Rabl1,2,3 — 1Technical University of Munich, TUM School of Natural Sciences, Physics Department, 85748 Garching, Germany — 2Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany — 3Munich Center for Quantum Science and Technology (MCQST), 80799 Munich, Germany
Lattice gauge theories (LGTs) are essential tools for studying fundamental interactions in particle physics and have broad applications in condensed matter physics and quantum information. Quantum simulation of non-Abelian theories remains challenging. Recent research on the analog simulation of LGTs has focused on scalable atomic quantum platforms. In contrast, we propose minimal SU(2) LGT models for analog simulation, tailored for small-scale superconducting quantum hardware. By adopting concepts from quantum optics, our approach emphasises coarse-grained systems that capture internal degrees of freedom and relevant non-Abelian properties with just a few qubits, bypassing the scalability demands of fine-grained models. We explore unique features of these non-Abelian systems and provide a circuit design for their experimental realisation. This work advances the study of non-Abelian gauge theories and introduces a novel method for implementation of LGTs using superconducting qubits.
Keywords: Lattice gauge theory; Analog simulation; Quantum applications; Non-Abelian; Superconducting circuit design