ultracold atoms
Reproducible dynamic dark ring lattices for ultracold atoms
... with ultracold atoms or BECs, without the need for relative laser beam phase coherence required in [18], and with greatly reduced inferred atomic decoherence and heating compared to reference ...
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Topological edge states and Aharanov-Bohm caging with ultracold atoms carrying orbital angular momentum
... Here, we explore topologically nontrivial multilevel mod- els that arise naturally for ultracold atoms in excited orbital angular momentum (OAM) states of a one-dimensional (1D) chain. We study a concrete ...
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Topological edge states with ultracold atoms carrying orbital angular momentum in a diamond chain
... We study the single-particle properties of a system formed by ultracold atoms loaded into the manifold of l = 1 orbital angular momentum (OAM) states of an optical lattice with a diamond-chain geometry. ...
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Bordia, Pranjal (2017): Probing many-body localization with ultracold atoms in optical lattices. Dissertation, LMU München: Fakultät für Physik
... bosonic atoms were trapped in periodic potentials formed by laser light called an optical ...neutral ultracold atoms can be employed to probe effects of disorder in a controlled ...
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Floquet engineering of correlated tunneling in the Bose-Hubbard model with ultracold atoms
... Ultracold atoms in optical lattices provide an excellent plat- form for highly controlled studies of strongly correlated states of matter, paradigm examples being the observation of a Mott insulator for ...
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Light induced atomic desorption in a compact system for ultracold atoms
... in ultracold atoms, a range of methods has been developed to produce quantum degenerate ...laser-cooled atoms from background vapour in a magneto-optical trap (MOT), followed by evaporative cooling ...
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Particle statistics and lossy dynamics of ultracold atoms in optical lattices
... In the past few years, there has been rapid progress in the characterization and control of dissipative dynam- ics for ultracold atoms in optical lattices. While these systems are most known for the ...
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Böhi, Pascal Alexander (2010): Coherent manipulation of ultracold atoms with microwave near-fields. Dissertation, LMU München: Fakultät für Physik
... non-degenerate ultracold atoms [55, 56], which works by releasing a cloud of atoms to free fall, and using the microwave near-field to drive resonant Rabi oscillations on different hyperfine ...
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Inductive dressed ring traps for ultracold atoms
... for ultracold atoms can be made via induction [6, 7], which eliminates both wire end-effects and roughness from meandering DC currents ...portable ultracold atomic setups and there have been recent ...
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Treutlein, Philipp (2008): Coherent manipulation of ultracold atoms on atom chips. Dissertation, LMU München: Fakultät für Physik
... which ultracold atoms are manip- ulated coherently on an atom ...The atoms are prepared in a coherent superposition of two hyperfine ground states which are both magnetically trappable and very ...
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Camerer, Stephan (2011): Interfacing ultracold atoms and mechanical oscillators. Dissertation, LMU München: Fakultät für Physik
... 1000 atoms would achieve a mass difference of only two orders of ...to ultracold atoms via the surface potential is investigated experimentally in the group of ...
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Topological edge states and Aharanov-Bohm caging with ultracold atoms carrying orbital angular momentum
... with ultracold atoms, as well as the experimental mea- surement [7] of Zak’s phase [8] and the detection of topo- logical states [9, 10], which complements paralell work in photonic waveguides ...cold ...
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Conjugate gradient minimisation approach to generating holographic traps for ultracold atoms
... Conjugate gradient minimisation of an appropriate cost function has been verified as a viable al- ternative to the established methods of hologram generation. By applying well-developed con- jugate gradient approaches ...
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A surface-patterned chip as a strong source of ultracold atoms for quantum technologies
... of atoms in the microKelvin regime 15,16 ...more atoms than previous microfab- ricated magneto-optical traps and, for the first time, at sub-Doppler ...
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Ultracold atoms in optical lattices
... As mentioned previously, strictly speaking there is no Mott insulator away from zero temperature and at non- zero temperatures there is only a crossover between a phase which has a very [r] ...
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Ultracold atoms in flexible holographic traps
... the atoms is illuminated by three beams with differing requirements: (1) a MOT beam incident from below, which must be collimated at the point of the atoms; (2) the SLM beam, which will be focused onto the ...
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Lüschen, Henrik Pascal (2018): Localization of ultracold atoms in quasi-periodic optical lattices. Dissertation, LMU München: Fakultät für Physik
... of atoms sitting on the same lattice site into a molecule ...individual atoms, atoms paired up in molecules will not appear on the ...of atoms into the ...the atoms are loaded ...
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Sympathetic cooling of molecular ions with ultracold atoms
... at ultracold velocities, by the time the atom gets to a distance close enough for chemical reaction, it has spontaneously decayed back to the ground ...(red) atoms during a collision with a ∼ 150 amu ion at ...
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A new apparatus to simulate fundamental interactions with ultracold atoms
... TOF imaging is performed by releasing the atoms in free fall, and taking an image after a given ballistic expansion time. Such expansion time is limited either by the time required by the falling sample to exit ...
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Optical ferris wheel for ultracold atoms
... Confining ultracold atomic samples in optical lattices allows the investigation of effects con- ventionally associated with condensed matter physics within a pure and controllable ...of atoms [1] as well as ...
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