Year: 2020
Type: article
Abstract: This work shows that the character of the narrow band wave functions in twisted bilayer graphene favor the formation of fractional Quantum Hall states even in the absence of a magnetic field. The authors trace the features of magic angle bands to a holomorphic property of the tractable chiral limit which also allows for mapping to a Dirac particle in an inhomogeneous magnetic field and the explicit construction of Laughlin like ground states.
Source: Physical Review Research
Authors: Patrick J. Ledwith, Grigory Tarnopolsky, Eslam Khalaf, Ashvin Vishwanath
Institution: Harvard University
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,625
Funders: National Science Foundation, U.S. Department of Defense, U.S. Department of Energy, Simons Foundation, Deutsche Akademie der Naturforscher Leopoldina - Nationale Akademie der Wissenschaften, National Defense Science and Engineering Graduate, Multidisciplinary University Research Initiative, Division of Materials Research, Army Research Office
OpenAlex ID: W2995398773