Conditions for vanishing central-well population in triple-well adiabatic transport

2008/10/19 by Tomáš Opatrný, Tomas Opatrny, Kunal K. Das · 3 citations
Physics and Astronomy · #Adiabatic process #Atomic and Subatomic Physics Research #Computer science #Demography #Physics #Population #Quantum and electron transport phenomena #Quantum mechanics #Quantum optics and atomic interactions #Quantum tunnelling #Statistical physics #Transfer (computing) #cond-mat.mes-hall

paper · pdf · doi:10.1103/physreva.79.012113

published as Phys. Rev. A 79, 012113 (2009) · 7 pages; 3 figures

arxiv created 2008/10/19 · openalex publication_date 2009/01/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Analytical expressions are derived for coherent tunneling via adiabatic passage in a triple-well system with negligible central-well population at all times during the transfer. It is shown that a manipulation of the depths of the extreme wells, correlated with the time variation of the nonadjacent barriers, is essential for maintaining the vanishing population of the central well. The validity of our conditions is demonstrated with a numerical solution of the time-dependent Schr"odinger equation. The transfer process is interpreted in terms of a current through the central well.

Citations

• Two-dimensional architectures for donor-based quantum computing
• Coherent population transfer among quantum states of atoms and molecules
• Spatial adiabatic passage in a realistic triple well structure

Cited by

• Spatial adiabatic passage: a review of recent progress
• Quantum ultracold atomtronics
• Atomistic simulations of adiabatic coherent electron transport in triple donor systems