Figure 12.8: Examples of symmetric and antisymmetric localized modes. Mode Power Q as
a function of its frequency is shown for the two kinds of modes; the bistable region is shown
shaded and is marked unstable (After Ref. [18]; (~)2001 Kluwer.)
thus such modes should be mobile. However, the Peierls-Nabarro barrier becomes
sufficiently large for nonlinear modes in the frequency range to < 0.344 x
21rc/a
that
such modes become immobile. Hence, this bistability phenomenon may be useful [49]
for
switching
between the immobile localized modes (used for energy storage) and the
mobile ...
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