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Electrostatic confinement in bilayer graphene can be of trivial (2D) or topological (1D) character depending on the potentials applied to top and bottom gates. Quantum dots and rings in each confinement type have been theoretically analyzed by Llorenç Serra and co‐workers in article number 2200023, showing remarkable differences in their energy spectra as a function of applied magnetic fields and...
Herein, two different types of confinement in bilayer graphene by top and bottom gating with symmetrical microelectrodes are discussed and compared. Trivial confinement corresponds to the same polarity of all top gates, which is opposed to that of all bottom ones. Topological confinement requires the polarity of part of the top–bottom pairs of gates to be reversed. It is shown that the main qualitative...
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