Fractional quantum anomalous Hall phase for Raman superarray of Rydberg atoms

Autor:	Poon, Ting-Fung Jeffrey, Zhou, Xin-Chi, Wang, Bao-Zong, Yang, Tian-Hua, Liu, Xiong-Jun
Rok vydání:	2023
Předmět:	Condensed Matter - Quantum Gases Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Strongly Correlated Electrons Quantum Physics
Zdroj:	Adv Quantum Technol. 2024, 2300356
Druh dokumentu:	Working Paper
DOI:	10.1002/qute.202300356
Popis:	Rydberg atom arrays offer promising platforms for quantum simulation of correlated quantum matter and raise great interests. This work proposes a novel stripe-lattice model with Raman superarray of Rydberg atoms to realize bosonic fractional quantum anomalous Hall (FQAH) phase. Two types of Rydberg states, arranged in a supperarray configuration and with Raman-assisted dipole-exchange couplings, are implemented to realize a minimal QAH model for hard-core bosons populated into a topological flat band with large bulk gap under proper tunable experimental condition. With this the bosonic FQAH phase can be further achieved and probed feasibly. In particular, a novel quench protocol is proposed to probe the fractionalized excitations by measuring the correlated quench dynamics featured by fractional charge tunneling between bulk and chiral edge modes in the open boundary. Comment: 6+5 pages, 4+1 figures, final version accepted by Adv Quantum Technol
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2302.13104 Zobrazit plný text záznamu View this record from Arxiv