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author:

Yu, Xue-Jia (Yu, Xue-Jia.) [1] | Shi, Shao-Hang (Shi, Shao-Hang.) [2] | Xu, Limei (Xu, Limei.) [3] | Li, Zi-Xiang (Li, Zi-Xiang.) [4]

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Abstract:

In the past few decades, tremendous efforts have been made toward understanding the exotic physics emerging from competition between various ordering tendencies in strongly correlated systems. Employing state-of-the-art quantum Monte Carlo simulation, we investigate an interacting SU(N) fermionic model with varying interaction strength and value of N, and we unveil the ground-state phase diagram of the model exhibiting a plethora of exotic phases. For small values of N - namely, N=2, 3 - the ground state is an antiferromagnetic (AFM) phase, whereas in the large-N limit, a staggered valence bond solid (VBS) order is dominant. For intermediate values of N such as N=4, 5, remarkably, our study reveals that distinct VBS orders appear in the weak and strong coupling regimes. More fantastically, the competition between staggered and columnar VBS ordering tendencies gives rise to a Mott insulating phase without spontaneous symmetry breaking (SSB), existing in a large interacting parameter regime, which is consistent with a gapped quantum spin liquid. Our study not only provides a platform to investigate the fundamental physics of quantum many-body systems - it also offers a novel route toward searching for exotic states of matter such as quantum spin liquid in realistic quantum materials. © 2024 American Physical Society.

Keyword:

Antiferromagnetism Ground state Intelligent systems Monte Carlo methods Quantum theory

Community:

  • [ 1 ] [Yu, Xue-Jia]International Center for Quantum Materials, School of Physics, Peking University, Beijing; 100871, China
  • [ 2 ] [Yu, Xue-Jia]Fujian Key Laboratory of Quantum Information and Quantum Optics, College of Physics and Information Engineering, Fuzhou University, Fujian, Fuzhou; 350108, China
  • [ 3 ] [Shi, Shao-Hang]Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing; 100190, China
  • [ 4 ] [Shi, Shao-Hang]University of Chinese Academy of Sciences, Beijing; 100049, China
  • [ 5 ] [Xu, Limei]International Center for Quantum Materials, School of Physics, Peking University, Beijing; 100871, China
  • [ 6 ] [Xu, Limei]Collaborative Innovation Center of Quantum Matter, Beijing; 100871, China
  • [ 7 ] [Xu, Limei]Interdisciplinary Institute of Light-Element Quantum Materials, Research Center for Light-Element Advanced Materials, Peking University, Beijing; 100871, China
  • [ 8 ] [Li, Zi-Xiang]Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing; 100190, China
  • [ 9 ] [Li, Zi-Xiang]University of Chinese Academy of Sciences, Beijing; 100049, China

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Source :

Physical Review Letters

ISSN: 0031-9007

Year: 2024

Issue: 3

Volume: 132

8 . 1 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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