6,549 research outputs found
Fast and slow edges in bilayer graphene nanoribbons:tuning the transition from band to Mott insulator
We show that gated bilayer graphene zigzag ribbons possess a fast and a slow edge, characterized by edge-state velocities that differ due to non-negligible next-nearest-neighbor hopping elements. By applying bosonization and renormalization group methods, we find that the slow edge can acquire a sizable interaction-induced gap, which is tunable via an external gate voltage Vg. In contrast to the gate-induced gap in the bulk, the interaction-induced gap depends nonmonotonously on the on-site potential V
Multidimensional quantum cosmic models: New solutions and gravitational waves
This paper contains a discussion on the quantum cosmic models, starting with
the interpretation that all of the accelerating effects in the current universe
are originated from the existence of a nonzero entropy of entanglement. In such
a realm, we obtain new cosmic solutions for any arbitrary number of spatial
dimensions, studying the stability of these solutions, so as the emergence of
gravitational waves in the realm of the most general models.Comment: 7 pages, 1 Figure, LaTe
Crowdsourcing and collaborative translation: mass phenomena or silent threat to translation studies?
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