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Ultracold dysprosium gases, with a magnetic moment ten times that of alkali atoms and equal only to terbium as the most magnetic atom, are expected to exhibit a multitude of fascinating collisional dynamics and quantum dipolar phases,…

Atomic Physics · Physics 2010-02-11 Mingwu Lu , Seo Ho Youn , Benjamin L. Lev

We propose a highly feasible technique with no experimental overhead to rapidly cool the in-plane degrees of freedom of large two-dimensional ion crystals in Penning traps. Through simulations, we demonstrate that our approach enables the…

Quantum Physics · Physics 2024-03-04 Wes Johnson , Athreya Shankar , John Zaris , John Bollinger , Scott E. Parker

We report on the efficient gray molasses cooling of sodium atoms using the $D_{2}$ optical transition at 589.1 nm. Thanks to the hyperfine split about 6$\Gamma$ between the $|F'=2\rangle$ and $|F'=3\rangle$ in the excited state…

Quantum Gases · Physics 2018-12-26 Zhenlian Shi , Pengjun Wang , Ziliang Li , Zengming Meng , Lianghui Huang , Jing Zhang

We propose an alternative method to laser cooling. Our approach utilizes the extreme brightness of a supersonic atomic beam, and the adiabatic atomic coilgun to slow atoms in the beam or to bring them to rest. We show how internal-state…

We investigate the interplay of temperature and trap effects in cold particle systems at their quantum critical regime, such as cold bosonic atoms in optical lattices at the transitions between Mott-insulator and superfluid phases. The…

Quantum Gases · Physics 2013-05-30 Giacomo Ceccarelli , Christian Torrero , Ettore Vicari

We extend the technique originally proposed by Honda et al.to measure the temperature of Ytterbium and alkine-earth atoms confined in a Magneto-Optical Trap (MOT). The method is based on the analysis of excitation spectra obtained by…

Atomic Physics · Physics 2013-05-29 Matteo Cristiani , Tristan Valenzuela , Hannes Gothe , Jürgen Eschner

We present a study of Sisyphus cooling of molecules: the scattering of a single-photon remove a substantial amount of the molecular kinetic energy and an optical pumping step allow to repeat the process. A review of the produced cold…

Chemical Physics · Physics 2014-04-11 Daniel Comparat

We report the trapping of ultracold neutral $ \text{Rb}$ atoms and $ \text{Ba}^+ $ ions in a common optical potential in absence of any radiofrequency (RF) fields. We prepare $ \text{Ba}^+ $ at $ 370 ~ \mu K $ and demonstrate efficient…

Atomic Physics · Physics 2020-02-12 J. Schmidt , P. Weckesser , F. Thielemann , T. Schaetz , L. Karpa

We present an opto-electrical cooling scheme for polar molecules based on a Sisyphus-type cooling cycle in suitably tailored electric trapping fields. Dissipation is provided by spontaneous vibrational decay in a closed level scheme found…

Quantum Physics · Physics 2009-10-07 M. Zeppenfeld , M. Motsch , P. W. H. Pinkse , G. Rempe

Magneto-optical effect is a fundamental but broad concept in magnetic mediums. Here we propose a scheme for its quantum emulation using ultracold atoms. By representing the light-medium interaction in the quantum-emulation manner, the…

Quantum Gases · Physics 2022-02-17 Zhen Zheng , Z. D. Wang

Ultracold gases of atoms from Main Group III (Group 13) of the Periodic Table, also known as "triel elements," have great potential for a new generation of quantum matter experiments. The first magneto-optical trap of a triel element…

Atomic Physics · Physics 2025-11-12 Putian Li , Xianquan Yu , Seth Hew Peng Chew , Jinchao Mo , Tiangao Lu , Travis L. Nicholson

Buffer-gas cooling is a universal cooling technique for molecules and used for various purposes. One of its applications is using molecules inside a buffer-gas cell for low-temperature spectroscopy. Although a high-intensity signal is…

We report the successful buffer-gas cooling and magnetic trapping of chromium atoms with densities exceeding $10^{12}$ atoms per cm$^{3}$ at a temperature of 350 mK for the trapped sample. The possibilities to extend the method to…

We present a scheme for laser cooling applicable for an extremely dilute sample of magnetically trapped antihydrogen atoms($\bar{H}$). Exploiting and controlling the dynamical coupling between the $\bar{H}$'s motional degrees of freedom in…

Atomic Physics · Physics 2015-06-11 P. H. Donnan , M. C. Fujiwara , F. Robicheaux

Magneto-optical traps are central to atomic and molecular quantum technologies and precision tests of fundamental physics, where both sensitivity and bandwidth scale strongly with atom number and loading rate. We demonstrate that employing…

We present a versatile electric trap for the exploration of a wide range of quantum phenomena in the interaction between polar molecules. The trap combines tunable fields, homogeneous over most of the trap volume, with steep gradient fields…

Quantum Physics · Physics 2012-08-02 B. G. U. Englert , M. Mielenz , C. Sommer , J. Bayerl , M. Motsch , P. W. H. Pinkse , G. Rempe , M. Zeppenfeld

Optically trapped laser-cooled polar molecules hold promise for new science and technology in quantum information and quantum simulation. Large numerical aperture optical access and long trap lifetimes are needed for many studies, but these…

Typical sources of ultracold atoms operate with a considerable delay between the delivery of ensembles due to sequential trapping and cooling schemes. Therefore, alternative schemes for the continuous generation of ultracold atoms are…

Quantum Physics · Physics 2015-11-23 J. Mahnke , I. Kruse , A. Hüper , S. Jöllenbeck , W. Ertmer , J. Arlt , C. Klempt

Doppler cooling with lasers is essential to ions' trapping and also a preliminary step towards achievement of ultracold ions. Due to lack of effective tools, experimentally monitoring the ions' temperature and the laser-ion coupling is…

Atomic Physics · Physics 2019-10-08 Lei-Lei Yan , Shi-Lei Su , Mang Feng

We have studied magneto-optical traps (MOTs) for efficient on-line trapping of radioactive atoms. After discussing a model of the trapping process in a vapor cell and its efficiency, we present the results of detailed experimental studies…

Atomic Physics · Physics 2014-11-18 S. N. Atutov , R. Calabrese , A. Facchini , G. Stancari , L. Tomassetti