||A. M. Fox, D. A. B. Miller, G. Livescu, J.
E. Cunningham, J. E. Henry, W. Y. Jan, "Excitons in resonant coupling of quantum
wells," Physical Review B, 42, 1841-1844, (1990).
examine, experimentally and theoretically, the effects of excitons in optical measurements
of resonant coupling of quantum wells. They find that the exciton line splittings do not
correspond directly to the underlying electron levels which leads to differences in the
bias fields for resonance of, e.g., approximately 10%. They construct a variational model
of excitons in coupled wells and successfully compare this model with measured splittings
near the resonance between the first and second electron levels of adjacent wells,
deducing the actual conditions for coupling of the 'bare' electron levels
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