English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The double-well problem for the two-dimensional Dirac equation is solved fora family of quasi-one-dimensional potentials in terms of confluent Heunfunctions. We demonstrate that for a double well separated by a barrier, boththe energy level splitting associated with the wavefunction overlap of wellstates, and the gap size of the avoided crossings associated with well andbarrier state repulsion, can be controlled via the parameters of the potential.The transitions between the two states comprising a doublet, as well astransitions across the pseudo-gaps are strongly allowed, highly anisotropic,and for realistic graphene devices can be tuned to fall within the highlydesirable terahertz frequency range.

Guided modes and terahertz transitions for two-dimensional Dirac fermions in a smooth double-well potential