Floquet scattering through a time-periodic potential
- Center for Studies in Statistical Mechanics and Complex Systems, The University of Texas at Austin, Austin, Texas 78712 (United States)
Floquet scattering theory is developed to study electron transmission through a harmonically driven potential. The Floquet S matrix is constructed to calculate transmission probabilities as well as the Wigner delay times. Transmission resonances result from the interaction of electrons with the oscillating field by means of photon emission and absorption. Oscillator-induced quasibound states can accumulate electrons and give rise to electron interchannel transitions at resonances. Due to the oscillating potential, an ac Stark effect is observed. Floquet quasibound states appear as transmission poles in the complex energy plane. Lifetimes obtained from transmission poles are of the same order of magnitude as the corresponding Wigner delay times. (c) 1999 The American Physical Society.
- OSTI ID:
- 20217820
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 60, Issue 23; Other Information: PBD: 15 Dec 1999; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
Similar Records
Floquet-Markovian description of the parametrically driven, dissipative harmonic quantum oscillator
Fano resonance in the nonadiabatically pumped shot noise of a time-dependent quantum well in a two-dimensional electron gas and graphene