2011/03/31 by T. Morgan, Tadhg Morgan, Brian O’Sullivan +3
Physics and Astronomy · #Acoustics #Adiabatic process #Atom (system on chip) #Atomic and Subatomic Physics Research #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Computational physics #Computer science #Fidelity #High fidelity #Physics #Quantum mechanics #Quantum optics and atomic interactions #Quantum tunnelling #Radio frequency #Telecommunications #Trap (plumbing) #Trapping #cond-mat.quant-gas #quant-ph
paper · pdf · doi:10.1103/physreva.83.053620
published as Phys. Rev. A 83, 053620 (2011) · 7 pages, 7 figures
openalex publication_date 2011/05/19 · arxiv created 2012/03/06 · arxiv updated 2015/03/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Coherent transport by adiabatic passage has recently been suggested as a high-fidelity technique to engineer the center-of-mass state of single atoms in inhomogeneous environments. While the basic theory behind this process is well understood, several conceptual challenges for its experimental observation have still to be addressed. One of these is the difficulty that currently available optical or magnetic micro-trap systems have in adjusting the tunneling rate time dependently while keeping resonance between the asymptotic trapping states at all times. Here we suggest that both requirements can be fulfilled to a very high degree in an experimentally realistic setup based on radio-frequency traps on atom chips. We show that operations with close to 100% fidelity can be achieved and that these systems also allow significant improvements for performing adiabatic passage with interacting atomic clouds.