Graphene Antidot Lattices - Designed Defects and Spin Qubits

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dc.creatorPedersen, Thomas G.
dc.creatorFlindt, Christian
dc.creatorPedersen, Jesper
dc.creatorMortensen, Niels Asger
dc.creatorJauho, Antti-Pekka
dc.creatorPedersen, Kjeld
dc.date2008-02-27
dc.date.accessioned2026-07-07T09:30:02Z
dc.date.available2026-07-07T09:30:02Z
dc.descriptionAntidot lattices, defined on a two-dimensional electron gas at a semiconductor heterostructure, are a well-studied class of man-made structures with intriguing physical properties. We point out that a closely related system, graphene sheets with regularly spaced holes ("antidots"), should display similar phenomenology, but within a much more favorable energy scale, a consequence of the Dirac fermion nature of the states around the Fermi level. Further, by leaving out some of the holes one can create defect states, or pairs of coupled defect states, which can function as hosts for electron spin qubits. We present a detailed study of the energetics of periodic graphene antidot lattices, analyze the level structure of a single defect, calculate the exchange coupling between a pair of spin qubits, and identify possible avenues for further developments.
dc.description4 pages, 5 figures, accepted for publication in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/0802.4019
dc.identifierhttp://arxiv.org/abs/0802.4019
dc.identifierPhys. Rev. Lett. 100, 136804 (2008).
dc.identifierdoi:10.1103/PhysRevLett.100.136804
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/158004
dc.subjectMesoscale and Nanoscale Physics
dc.titleGraphene Antidot Lattices - Designed Defects and Spin Qubits
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