Transmission resonances and zeros in quantum waveguides with resonantly coupled cavities
- 14 September 1992
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 61 (11) , 1350-1352
- https://doi.org/10.1063/1.107588
Abstract
We report on the existence of transmission zeros in quantum waveguide structures with resonantly coupled cavities. Such zeros do not occur in the usual double-barrier resonant tunneling systems. For quantum waveguides, the transmission probability exhibits pairs of poles and zeros in the complex-energy plane. The observed sharp structure of the transmission resonances and zeros can be understood in terms of these zero-pole pairs.Keywords
This publication has 10 references indexed in Scilit:
- Nanostructure resonancesIEEE Transactions on Electron Devices, 1992
- Transmission through multiply-connected wire systemsPhysical Review B, 1990
- Theory for a quantum modulated transistorJournal of Applied Physics, 1989
- Two types of conductance minima in electrostatic Aharonov-Bohm conductance oscillationsPhysical Review B, 1989
- Adiabatic quantum transport in multiply connected systemsReviews of Modern Physics, 1988
- Theory of resonant tunneling in heterostructuresPhysical Review B, 1988
- Coherent and sequential tunneling in series barriersIBM Journal of Research and Development, 1988
- Resonant level lifetime in GaAs/AlGaAs double-barrier structuresApplied Physics Letters, 1987
- Quantum oscillations in one-dimensional normal-metal ringsPhysical Review A, 1984
- Quantum Conduction on a Cayley TreePhysical Review Letters, 1983