Work

Quantum criticality and entanglement for the two-dimensional long-range Heisenberg bilayer

Year: 2024

Type: article

Abstract: 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.

Source: Physical review. B./Physical review. B

DOI: 10.1103/physrevb.109.l081114

Authors: Menghan Song, Jiarui Zhao, Yang Qi, Junchen Rong, Zi Yang Meng

Institutions: University of Hong Kong, Fudan University, Collaborative Innovation Center of Advanced Microstructures, State Key Laboratory of Surface Physics, Institut des Hautes Études Scientifiques

Language: English

Topic: Quantum many-body systems

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Supercomputer Centre in Guangzhou, Agence Nationale de la Recherche, Research Grants Council, University Grants Committee, Institut des Hautes Études Scientifiques, Université Paris-Saclay