Coherent adiabatic transport of atoms in radio-frequency traps

Details Coherent adiabatic transport of atoms in radio-frequency traps Coherent adiabatic transport of atoms in radio-frequency traps

2011-03-11

arxiv.org/abs/1103.2339v2

Phys. Rev. A 83, 053620 (2011)

Physics

Quantum Physics

7 pages, 7 figures

Scientific paper

10.1103/PhysRevA.83.053620

Coherent transport by adiabatic passage has recently been suggested as a high-fidelity technique to engineer the centre-of-mass state of single atoms in inhomogenous 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.

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