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The authors conduct here a pioneering and unbiased investigation into the entanglement properties of (2+1)-dimensional O(3) quantum critical points and two-dimensional N\'eel states in systems with long-range interactions. This study uncovers exotic properties, such as the vanishing of logarithmic corrections to entanglement entropies at QCPs and an enhancement in N\'eel states as long-range interactions amplify. Moreover, they determine precise critical exponents of QCPs influenced by long-range interactions, characterized by three distinct renormalization group fixed points.
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Song et al. (2024) studied this question.
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