Quasiballistic

Thus, we should note that the exponent α for SWNTs is an effective exponent and valid within the limited quasiballistic region where ballistic and diffusive phonons coexist, rather than the asymptotic exponent at L → ∞.

For this first-order optimization, the electrons not experiencing ballistic (no scattering) and the quasiballistic transport (i.e., only one phonon emission or absorption) within the SEI region are assumed thermalized to the bottom of the conduction band of the SEI layer.

Consequently, in a generic set, these operators are quasiballistic.