Wave-packet theory of coherent carrier dynamics in a semiconductor superlattice
Mark L. Biermann and C. R. Stroud, Jr.
Phys. Rev. B 47, 3718 (1993).
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An investigation of coherent carrier dynamics in optically excited,
semiconductor superlattices is presented. A k.p, local
pseudopotential method is used for the band-structure calculation. The
coherent dynamics are described in a wave-packet formalism similar to that
applied in atomic systems. The method is then applied to specific
quantum-well and superlattice systems. The results of the formalism in
these examples are consistent with experimental studies in similar systems.
Coherent dynamics analogous to those seen in atomic systems are predicted
in semiconductor systems. These phenomena include the decay and revival of
the wave packet.
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