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20 April 2024 |
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Stripe order in the underdoped region of the two-dimensional Hubbard model | | Bo-Xiao Zheng
; Chia-Min Chung
; Philippe Corboz
; Georg Ehlers
; Ming-Pu Qin
; Reinhard M. Noack
; Hao Shi
; Steven R. White
; Shiwei Zhang
; Garnet Kin-Lic Chan
; | | Date: |
31 Dec 2016 | | Abstract: | Competing inhomogeneous orders are a central feature of correlated electron
materials including high-temperature superconductors. The two-dimensional
Hubbard model serves as the canonical microscopic physical model. Multiple
orders have been proposed in the underdoped ground-state phase diagram, which
corresponds to a regime of maximum numerical difficulty. By combining the
latest numerical methods in exhaustive simulations, we provide a definitive
resolution of the order in the underdoped ground state. We find a fully filled
stripe that is highly compressible on an energy scale of a few Kelvin, with
wavelength fluctuations coupled to pairing order. Additional physics beyond the
Hubbard model is now necessary to account for deviations from this picture. Our
results demonstrate the power of modern numerical methods to solve microscopic
models even in the most challenging settings. | | Source: | arXiv, 1701.0054 | | Services: | Forum | Review | PDF | Favorites | |
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