Intertwined spin, charge, and pair correlations in the two-dimensional Hubbard model in the thermodynamic limit

• DOI: 10.1073/pnas.2112806119
• Publication Date: 2022-02-09T21:20:41Z
• Authors: Peizhi Mai; Seher Karakuzu; Giovanni Balduzzi; Steven Johnston; Thomas A. Maier
• Keywords: Thermodynamic limit; Strongly correlated material

The high-temperature superconducting cuprates are governed by intertwined spin, charge, and orders. While various state-of-the-art numerical methods have demonstrated that these phases also manifest themselves in doped Hubbard models, they differ on which is the actual ground state. Finite-cluster typically indicate stripe order dominates, while embedded quantum-cluster methods, access thermodynamic limit treating long-range correlations with a dynamical mean field, conclude superconductivity does. Here, we report observation of fluctuating spin charge stripes single-band model using quantum Monte Carlo cluster approximation (DCA) method. By resolving both orders DCA, demonstrate survive limit. This discovery provides an opportunity to study influence model's pairing within unified framework. Using this approach, find evidence for pair-density-wave whose strength correlated stripes.