Year: 2021
Type: article
Abstract: The recent theoretical and experimental discovery of higher-order topological insulators raises the question whether the interplay of this new topology and strong interactions could lead to a three-dimensional generalization of the fractional quantum Hall effect. The authors answer this question here using a model wavefunction ansatz and Monte Carlo simulations. They show that this interplay leads to fractional chiral hinge modes, similar to the Laughlin physics. Surprisingly, these results indicate a clear departure from conventional two-dimensional topological order on the gapped surfaces, akin to half a Laughlin state.
Institutions: Max Planck Institute of Quantum Optics, Munich Center for Quantum Science and Technology, University of Leeds, University of Belgrade, Institute of Physics Belgrade, University of Vienna, Princeton University, Centre National de la Recherche Scientifique, Université Paris Sciences et Lettres, École Normale Supérieure - PSL, Sorbonne Université, Sorbonne Paris Cité, Laboratoire de Physique de l'Ecole Normale Supérieure, Université Paris Diderot
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, David and Lucile Packard Foundation, U.S. Department of Energy, Gordon and Betty Moore Foundation, Princeton Center for Complex Materials, Institute of Physics Belgrade, European Commission, Deutsche Forschungsgemeinschaft, Agence Nationale de la Recherche, United States-Israel Binational Science Foundation, Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja, Science Fund of the Republic of Serbia, Materials Research Science and Engineering Center, Harvard University, European Research Council, Horizon 2020, Office of Naval Research, Division of Materials Research
Awards: G1268236209, G1349703009, G1417316065, G1426273466, Princeton Center for Complex Materials, G1746067696, G1768993395, G1829435969, G2174132073, G231474785, Emergent Phenomena in Quantum Systems Theory Center, G2586477669, G3224369381, Topological phases of matter : beyond two dimensions, G434337789, G4710139657, G5086395447, G5096419125, G5771549640, G5947738484, G6140129497, G6268440392, EAGER: Topological Semimetals, Insulators and Supersymmetry, G6483347634, G6536552022, Princeton Center for Complex Materials, G6803667113, G6918153286, G7097480066, NEW TOPOLOGICAL FRONTIER, G732077798, G7789842359, G8481041649, EXC 2111: Munich Center for Quantum Science and Technology (MCQST), G8876996369
OpenAlex ID: W3094142478