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Height-conserving quantum dimer models

delete2022-07-26
delete14
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OA
AI
Z
Zheng Yan
Zi Yang Meng 封面图
Zi Yang Meng (Zi Yang Meng) *
D
David A. Huse
A
Amos Chan *
DOI:10.1103/PhysRevB.106.L041115delete
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摘要

摘要

En 中文
We propose a height-conserving quantum dimer model (hQDM) such that the lattice sum of its associated height field is conserved, and that it admits a Rokhsar-Kivelson (RK) point. The hQDM with a minimal interaction range on the square lattice exhibits Hilbert space fragmentation and maps exactly to the XXZ spin model on the square lattice in certain Krylov subspaces. We obtain the ground-state phase diagram of hQDM via quantum Monte Carlo simulations, and demonstrate that a large portion of it is within the Krylov subspaces which admit the exact mapping to the XXZ model, with dimer ordered phases corresponding to easy-axis and easy-plane spin orders. At the RK point, the apparent dynamical exponents obtained from the single mode approximation and the height correlation function show drastically different behavior across the Krylov subspaces, exemplifying Hilbert space fragmentation and emergent glassy phenomena.
Keyword:
VALENCE-BOND STATE
THERMALIZATION

期刊

Physical Review B 封面图
Physical Review B
IF:
3.7
论文数:
15.4W
被引数:
41.0W

机构

U
University of Hong Kong
学者数:
4.1W
论文数: 3.9W
被引数: 10.1W
P
Princeton University
学者数:
2.1W
论文数: 2.3W
被引数: 5.1W
引用论文

引用论文

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