Multiple tunneling and chaos in asymmetrically coupled quantum wells

Oscillatory and chaotic motion of heavy to light hole mixing tunneling in a symmetrically coupled quantum well structures is determined by two competin g processes: HHa to LHa and HHa to LHb. Chaotic behavior occurs if the two processes ale compatible. Oscillatory motion is recovered if one process is dominant. The effects of barrier width, external field, and in-plane wave factor kit on each process are addressed.