Researchers have observed an antiferromagnetic phase transition using a large-scale quantum simulator based on the fermionic Hubbard model. This achievement is a significant step towards understanding the low-temperature phase diagram of the model, which could elucidate the mechanisms behind high-temperature superconductivity. The team, led by Prof. Pan Jianwei and colleagues, developed a quantum simulator with 800,000 lattice sites, enabling precise control over interaction strength, temperature, and doping concentration. This advancement demonstrates the potential of quantum simulation in addressing complex quantum material problems.
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