In this book, SRR based Metamaterial can be shown by performing
extensive quantum calculations using classical breathers and two-phonon
bound state (TPBS) or quantum breather state. The latter was done in a
periodic and non-periodic boundary condition approach which is presented
to characterize discrete breathers. Secondly, using boundary condition
as non-periodic, the of time advancement of quanta shows in terms of
'critical' time of redistribution of quanta or phonons that is
proportional to QB's lifetime in femtosecond having a possibility for
Terra Hertz applications.