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Trapping Ions in Atoms and Molecules Optically

Total Cost €


EC-Contrib. €






 TIAMO project word cloud

Explore the words cloud of the TIAMO project. It provides you a very rough idea of what is the project "TIAMO" about.

optics    traps    hybrid    isolating    perspectives    perfectly    bose    ultimate    trapping    experiments    quanta    enter    energy    atom    starting    dominate    magnitude    significantly    condensate    combining    degenerate    decades    limit    orders    tools    reaction    predicted    showcase    interaction    gases    environment    below    particle    ion    molecules    collisions    operations    wave    mesoscopic    engineering    optically    coulomb    kept    simulations    chemistry    ultra    ions    propel    see    addressability    adapting    subsequent    temperature    atoms    optical    sensitive    methodology    fidelities    cold    trapped    inevitable    striving    einstein    group    neutral    binding    excess    physics    individual    kinetic    rf    purpose    improvement    substantial    explore    quantum    dynamics    merged    radiofrequency    experimental    point    suited    gain    clusters    permits    circumvents    particles    temperatures    larger    body    demonstrated    impurity    detection    advantages    context    embed    light    regime   

Project "TIAMO" data sheet

The following table provides information about the project.


Organization address
postcode: 79098

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Project website
 Total cost 1˙792˙500 €
 EC max contribution 1˙792˙500 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-CoG
 Funding Scheme ERC-COG
 Starting year 2015
 Duration (year-month-day) from 2015-08-01   to  2020-07-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

Isolating ions and atoms from the environment is essential in experiments on a quantum level. For decades, this has been achieved by trapping ions with radiofrequency (rf) fields and neutral particles with optical fields. Our group demonstrated the trapping of ions by interaction with light. We see these results and our proposal as starting point for finally combining the advantages of optical trapping and ions. In particular, ions provide individual addressability, high fidelities of operations and long-range Coulomb interaction, significantly larger compared to those of atoms and molecules The aim of this proposal is to (i) study and establish optically trapping of ions and atoms in general, to (ii) demonstrate the substantial improvement of our approach in the context of interaction and reaction at ultra-low temperatures and to (iii) explore further perspectives by adapting methodology of quantum optics to gain control and state-sensitive detection on the level of individual quanta within the merged ion-atom system. The field of ultra cold chemistry is perfectly suited as a showcase for this purpose. We will embed optically trapped ions into quantum degenerate gases to reach temperatures, 4-5 orders of magnitude below the current state of the art. Our approach circumvents the currently inevitable excess kinetic energy in hybrid traps, where ions are kept but also driven by rf-fields. It permits to enter the temperature regime where quantum effects are predicted to dominate, (i) in many-body physics, including the potential formation and dynamics of mesoscopic clusters of atoms of a Bose-Einstein-Condensate, binding to the “impurity ion”, as well as (ii) the subsequent two-particle s-wave collisions, the ultimate limit in ultra-cold chemistry.

Further development of our novel and generic tools for “quantum engineering can be expected to propel several other striving fields of research, such as, experimental quantum simulations


year authors and title journal last update
List of publications.
2020 J. Schmidt, P. Weckesser, F. Thielemann, T. Schaetz, L. Karpa
Optical Traps for Sympathetic Cooling of Ions with Ultracold Neutral Atoms
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.124.053402
Physical Review Letters 124/5 2020-04-14
2018 Julian Schmidt, Alexander Lambrecht, Pascal Weckesser, Markus Debatin, Leon Karpa, Tobias Schaetz
Optical trapping of ion Coulomb crystals
published pages: , ISSN: , DOI:
2017 Tobias Schaetz
Trapping ions and atoms optically
published pages: , ISSN: 0953-4075, DOI:
J. Phys. B: At. Mol. Opt. Phys 2020-04-14

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