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Title: Adiabatic radio-frequency potentials for the coherent manipulation of matter waves

Abstract

Adiabatic dressed state potentials are created when magnetic substates of trapped atoms are coupled by a radio-frequency field. We discuss their theoretical foundations and point out fundamental advantages over potentials purely based on static fields. The enhanced flexibility enables one to implement numerous configurations, including double wells, Mach-Zehnder, and Sagnac interferometers which even allows for internal state-dependent atom manipulation. These can be realized using simple and highly integrated wire geometries on atom chips.

Authors:
; ;  [1];  [1];  [2];  [1];  [3];  [1];  [2]
  1. Physikalisches Institut, Universitaet Heidelberg, D-69120 Heidelberg (Germany)
  2. (France)
  3. (Sweden)
Publication Date:
OSTI Identifier:
20786977
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 73; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevA.73.033619; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ATOMS; FLEXIBILITY; GEOMETRY; MACH-ZEHNDER INTERFEROMETER; OPTICS; POTENTIALS; RADIATION PRESSURE; RADIOWAVE RADIATION; TRAPPING

Citation Formats

Lesanovsky, I., Hofferberth, S., Schmiedmayer, J., Schumm, T., Laboratoire Charles Fabry de l'Institut d'Optique, UMR 8105 du CNRS, F-91403 Orsay, Andersson, L. M., Department of Microelectronics and Information Technology, The Royal Institute of Technology, KTH, Electrum 229, SE-164 40, Kista, Krueger, P., and Laboratoire Kastler Brossel, 24 Rue Lhomond, 75005 Paris. Adiabatic radio-frequency potentials for the coherent manipulation of matter waves. United States: N. p., 2006. Web. doi:10.1103/PHYSREVA.73.0.
Lesanovsky, I., Hofferberth, S., Schmiedmayer, J., Schumm, T., Laboratoire Charles Fabry de l'Institut d'Optique, UMR 8105 du CNRS, F-91403 Orsay, Andersson, L. M., Department of Microelectronics and Information Technology, The Royal Institute of Technology, KTH, Electrum 229, SE-164 40, Kista, Krueger, P., & Laboratoire Kastler Brossel, 24 Rue Lhomond, 75005 Paris. Adiabatic radio-frequency potentials for the coherent manipulation of matter waves. United States. doi:10.1103/PHYSREVA.73.0.
Lesanovsky, I., Hofferberth, S., Schmiedmayer, J., Schumm, T., Laboratoire Charles Fabry de l'Institut d'Optique, UMR 8105 du CNRS, F-91403 Orsay, Andersson, L. M., Department of Microelectronics and Information Technology, The Royal Institute of Technology, KTH, Electrum 229, SE-164 40, Kista, Krueger, P., and Laboratoire Kastler Brossel, 24 Rue Lhomond, 75005 Paris. Wed . "Adiabatic radio-frequency potentials for the coherent manipulation of matter waves". United States. doi:10.1103/PHYSREVA.73.0.
@article{osti_20786977,
title = {Adiabatic radio-frequency potentials for the coherent manipulation of matter waves},
author = {Lesanovsky, I. and Hofferberth, S. and Schmiedmayer, J. and Schumm, T. and Laboratoire Charles Fabry de l'Institut d'Optique, UMR 8105 du CNRS, F-91403 Orsay and Andersson, L. M. and Department of Microelectronics and Information Technology, The Royal Institute of Technology, KTH, Electrum 229, SE-164 40, Kista and Krueger, P. and Laboratoire Kastler Brossel, 24 Rue Lhomond, 75005 Paris},
abstractNote = {Adiabatic dressed state potentials are created when magnetic substates of trapped atoms are coupled by a radio-frequency field. We discuss their theoretical foundations and point out fundamental advantages over potentials purely based on static fields. The enhanced flexibility enables one to implement numerous configurations, including double wells, Mach-Zehnder, and Sagnac interferometers which even allows for internal state-dependent atom manipulation. These can be realized using simple and highly integrated wire geometries on atom chips.},
doi = {10.1103/PHYSREVA.73.0},
journal = {Physical Review. A},
number = 3,
volume = 73,
place = {United States},
year = {Wed Mar 15 00:00:00 EST 2006},
month = {Wed Mar 15 00:00:00 EST 2006}
}
  • We explore properties of atoms whose magnetic hyperfine sublevels are coupled by an external magnetic radio frequency (rf) field. We perform a thorough theoretical analysis of this driven system and present a number of systematic approximations which eventually give rise to dressed adiabatic radio frequency potentials. The predictions of this analytical investigation are compared to numerically exact results obtained by a wave packet propagation. We outline the versatility and flexibility of this class of potentials and demonstrate their potential use to build atom optical elements such as double wells, interferometers, and ringtraps. Moreover, we perform simulations of interference experiments carriedmore » out in rf induced double-well potentials. We discuss how the nature of the atom-field coupling mechanism gives rise to a decrease of the interference contrast.« less
  • 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 onmore » 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.« less
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  • An experimental investigation is presented to characterize the dependence of discharge operation modes ({alpha} and {gamma} modes) and their transition on excitation frequency in radio-frequency atmospheric argon glow discharges. The current-voltage characteristics are used to distinguish the {alpha} and {gamma} modes at an excitation frequency range of 5-24 MHz. The operation regime of {alpha} mode with stable and uniform discharge in large volume is found to expand at higher excitation frequency. It is shown that, when excitation frequency is below 10 MHz, the discharge evolves directly into {gamma} mode after gas breakdown and, when excitation frequency is above 10 MHz,more » the discharge operates in the coexistence mode of {alpha} and {gamma} after mode transition.« less
  • We demonstrate high resolution coherent control of cold atomic rubidium utilizing spectral phase manipulation of a femtosecond optical frequency comb. Transient coherent accumulation is directly manifested by the enhancement of signal amplitude and spectral resolution via the pulse number. The combination of frequency comb technology and spectral phase manipulation enables coherent control techniques to enter a new regime with natural linewidth resolution.