Quantum Simulation of Abelian Lattice Gauge Theories via State-Dependent Hopping

• Published in: arXiv.org
• Main Authors: Dehkharghani, A S, Rico, E, Zinner, N T, Negretti, A
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 13.10.2017
• Subjects: Charged particles; Particle interactions; Physics - Atomic Physics; Physics - Quantum Gases; Physics - Quantum Physics; Quantum electrodynamics; Simulation; Stability
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.1704.00664

We develop a quantum simulator architecture that is suitable for the simulation of \(U(1)\) Abelian gauge theories such as quantum electrodynamics. Our approach relies on the ability to control the hopping of a particle through a barrier by means of the internal quantum states of a neutral or charged impurity-particle sitting at the barrier. This scheme is experimentally feasible, as the correlated hopping does not require fine-tuning of the intra- and inter-species interactions. We investigate the applicability of the scheme in a double well potential, which is the basic building block of the simulator, both at the single-particle and the many-body mean-field level. Moreover, we evaluate its performance for different particle interactions and trapping, and, specifically for atom-ion systems, in the presence of micro-motion.