2008/02/29 by Jared H. Cole, Andrew D. Greentree, Lloyd C. L. Hollenberg +2
Computer Science · Physics and Astronomy · #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum optics and atomic interactions #cond-mat.mes-hall #quant-ph
paper · pdf · doi:10.1103/physrevb.77.235418
published as Phys. Rev. B 77, 235418 (2008) · 10 pages, 12 figures (color online) - Published Version
openalex publication_date 2008/06/13 · arxiv created 2008/06/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigate the evolution of an electron undergoing coherent tunneling via adiabatic passage (CTAP) using the solution of the one-dimensional Schr"odinger equation in both space and time for a triple well potential. We find the eigenspectrum and complete time evolution for a range of different pulsing schemes. This also provides an example of a system that can be described with the tools from both quantum optics and condensed matter. We find that while the quantum optics description of the process captures most of the key physics, there are important effects that can only be correctly described by a more complete representation. This is an important point for applications such as quantum information processing or quantum control where it is common practice to use a reduced state space formulation of the quantum system in question.