43 citations · 43 across the 1 of their papers we have counts for
7 papers
Topological Flat Bands and Correlated States in Twisted Monolayer-Bilayer Graphene
Louk Rademaker, Ivan Protopopov, Dmitry Abanin
Monolayer graphene placed with a twist on top of AB-stacked bilayer graphene hosts topological flat bands in a wide range of twist angles. The dispersion of these bands and gaps be…
Direct evidence for flat bands in twisted bilayer graphene from nano-ARPES
Simone Lisi, Xiaobo Lu, Tjerk Benschop +21
Transport experiments in twisted bilayer graphene revealed multiple superconducting domes separated by correlated insulating states. These properties are generally associated with…
Stability and Absence of a Tower of States in Ferrimagnets
Louk Rademaker, Aron Beekman, Jasper van Wezel
Antiferromagnets and ferromagnets are archetypes of the two distinct (type-A and type-B) ways of spontaneously breaking a continuous symmetry. Although type-B Nambu--Goldstone mode…
Exact Ground State of Lieb-Mattis Hamiltonian as a Superposition of Néel states
Louk Rademaker
We show that the exact ground state of the Lieb-Mattis Hamiltonian is an equal-weight superposition of all possible classical Néel states, and provide an exact formulation of this…
An Introduction to Spontaneous Symmetry Breaking
Aron J. Beekman, Louk Rademaker, Jasper van Wezel
Perhaps the most important aspect of symmetry in physics is the idea that a state does not need to have the same symmetries as the theory that describes it. This phenomenon is know…
Charge Smoothening and Band Flattening due to Hartree corrections in Twisted Bilayer Graphene
Louk Rademaker, Dmitry A. Abanin, Paula Mellado
Doping twisted bilayer graphene away from charge neutrality leads to an enormous buildup of charge inhomogeneities within each Moiré unit cell. Here we show, using unbiased real-sp…