Auflistung nach Schlagwort "Laser cooling"

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  • Cryogenic 9Be+ Penning trap for precision measurements with (anti-)protons 
    Niemann, M.; Meiners, T.; Mielke, J.; Borchert, M.J.; Cornejo, J.M.; Ulmer, S.; Ospelkaus, C. (Bristol : Institute of Physics Publishing, 2019)
    Cooling and detection schemes using laser cooling and methods of quantum logic can contribute to high precision CPT symmetry tests in the baryonic sector. This work introduces an experiment to sympathetically cool protons ...
  • Deceleration, precooling, and multi-pass stopping of highly charged ions in Be+ Coulomb crystals 
    Schmöger, L.; Schwarz, M.; Baumann, T.M.; Versolato, O.O.; Piest, B.; Pfeifer, T.; Ullrich, J.; Schmidt, Piet O.; Crespo López-Urrutia, J.R. (College Park, MD : American Institute of Physics, 2015)
    Preparing highly charged ions (HCIs) in a cold and strongly localized state is of particular interest for frequency metrology and tests of possible spatial and temporal variations of the fine structure constant. Our versatile ...
  • Dissipative preparation of antiferromagnetic order in the Fermi-Hubbard model 
    Kaczmarczyk, J.; Weimer, Hendrik; Lemeshko, Mikhail (Bristol : Institute of Physics Publishing, 2016)
    The Fermi-Hubbard model is one of the key models of condensed matter physics, which holds a potential for explaining the mystery of high-temperature superconductivity. Recent progress in ultracold atoms in optical lattices ...
  • Finite-temperature spectrum at the symmetry-breaking linear to zigzag transition 
    Kiethe, Jan; Timm, Lars; Landa, Haggai; Kalincev, Dimitri; Morigi, Giovanna; Mehlstäubler, Tanja E. (Woodbury, NY : Inst., 2021)
    We investigate the normal-mode spectrum of a trapped ion chain at the symmetry-breaking linear to zigzag transition and at finite temperatures. For this purpose, we modulate the amplitude of the Doppler cooling laser to ...
  • Laser cooling a membrane-in-the-middle system close to the quantum ground state from room temperature 
    Saarinen, Sampo A.; Kralj, Nenad; Langman, Eric C.; Tsaturyan, Yeghishe; Schliesser, Albert (Washington, DC : Optica, 2023)
    Many protocols in quantum science and technology require initializing a system in a pure quantum state. In the context of the motional state of massive resonators, this enables studying fundamental physics at the elusive ...
  • A Laser System for Gray-Molasses Cooling on the D1 Transition of an Atomic Gas of 39K 
    Shammout, Baraa (Hannover : Gottfried Wilhelm Leibniz Universität, 2020)
    In this work we present the design and the construction of a laser system for cooling an atomic gas of potassium 39K on the D1-Line by gray molasses technique. The seed laser is an Interference-filter-stabilized external-cavity ...
  • Multilayer ion trap technology for scalable quantum computing and quantum simulation 
    Bautista-Salvador, A.; Zarantonello, G.; Hahn, H.; Preciado-Grijalva, A.; Morgner, J.; Wahnschaffe, M.; Ospelkaus, C. (Bristol : Institute of Physics Publishing, 2019)
    We present a novel ion trap fabrication method enabling the realization of multilayer ion traps scalable to an in principle arbitrary number of metal-dielectric levels. We benchmark our method by fabricating a multilayer ...
  • Neuartige Kühlmethoden zur Erzeugung ultrakalter Ca-Atome 
    Binnewies, Tomas (Hannover : Universität, 2001)
    [no abstract]
  • Polarisationsgradientenkühlen eines langsamen Atomstrahls 
    Rauner, Max (Hannover : Universität, 1998)
    [no abstract]
  • Remote frequency measurement of the 1S 0→ 3P 1 transition in laser-cooled 24Mg 
    Friebe, J.; Riedmann, M.; Wübbena, T.; Pape, A.; Kelkar, H.; Ertmer, Wolfgang; Terra, O.; Sterr, Uwe; Weyers, S.; Grosche, G.; Schnatz, H.; Rasel, Ernst Maria (Bristol : IOP Publishing Ltd., 2011)
    We perform Ramsey-Bordé spectroscopy on laser-cooled magnesium atoms in free fall to measure the 1S 0→ 3P 1 intercombination transition frequency. The measured value of 655 659 923 839 730 (48) Hz is consistent with our ...
  • The TRAPSENSOR facility: An open-ring 7 tesla Penning trap for laser-based precision experiments 
    Gutiérrez, Manuel J.; Berrocal, Joaquín; Cornejo, Juan M.; Domínguez, Francisco; Del Pozo, Jesús J.; Arrazola, Iñigo; Bañuelos, Javier; Escobedo, Pablo; Kaleja, Oliver; Lamata, Lucas; Rica, Raúl A.; Schmidt, Stefan; Block, Michael; Solano, Enrique; Rodríguez, Daniel (Bristol : Institute of Physics Publishing, 2019)
    A Penning-trap facility for high-precision mass spectrometry based on a novel detection method has been built. This method consists in measuring motional frequencies of singly-charged ions trapped in strong magnetic fields ...
  • Time-domain high-finesse atom interferometry 
    Hinderthür, H.; Ruschewitz, F.; Lohe, H.-J.; Lechte, S.; Sengstock, K.; Ertmer, Wolfgang (American Physical Society, 1999)
    We report on experiments of multiple-beam atom interferometry in the time domain. Laser-cooled and trapped atoms interact with atomic "multiple beam splitters" realized by time sequences of resonant laser pulses. The output ...
  • A Zeeman slower for diatomic molecules 
    Petzold, M.; Kaebert, P.; Gersema, P.; Siercke, M.; Ospelkaus, S. (Bristol : Institute of Physics Publishing, 2018)
    We present a novel slowing scheme for beams of laser-coolable diatomic molecules reminiscent of Zeeman slowing of atomic beams. The scheme results in efficient compression of the one-dimensional velocity distribution to ...