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Laser cooled atoms are central to modern precision measurements. They are also increasingly important as an enabling technology for experimental cavity quantum electrodynamics, quantum information processing and matter wave interferometry.…

We consider the process of cooling of a heavy particle beam in a co-moving electron beam of low temperature guided by a solenoidal magnetic field. This paper summarizes the main results of theoretical studies of this process conducted by…

Accelerator Physics · Physics 2017-06-02 Yaroslav S. Derbenev

We present the technical realization of a compact system for performing experiments with cold $^{87}{\text{Rb}}$ and $^{39}{\text{K}}$ atoms in microgravity in the future. The whole system fits into a capsule to be used in the drop tower…

This review describes the production of atomic strontium samples at ultra-low temperature and at high phase-space density, and their possible use for physical studies and applications. We describe the process of loading a magneto-optical…

Atomic Physics · Physics 2007-05-23 F. Sorrentino , G. Ferrari , N. Poli , R. Drullinger , G. M. Tino

An increasingly large variety of molecular species are being cooled down to low energies in recent years, and innovative ideas and powerful techniques continue to emerge to gain ever more precise control of molecular motion. In this brief…

Quantum Gases · Physics 2024-05-24 Tim Langen , Giacomo Valtolina , Dajun Wang , Jun Ye

A thermal atomic beam of dysprosium (Dy) atoms is cooled using the $4f^{10}6s^2 (J=8) \to 4f^{10}6s6p (J=9)$ transition at 421 nm. The cooling is done via a standing light wave orthogonal to the atomic beam. Efficient transverse cooling to…

Atomic Physics · Physics 2013-05-29 N. Leefer , A. Cingöz , B. Gerber-Siff , Arijit Sharma , J. R. Torgerson , D. Budker

We propose and demonstrate the laser cooling and trapping of Rydberg-dressed Sr atoms. By off-resonantly coupling the excited state of a narrow (7 kHz) cooling transition to a high-lying Rydberg state, we transfer Rydberg properties such as…

Atomic Physics · Physics 2018-05-09 A. D. Bounds , N. C. Jackson , R. K. Hanley , R. Faoro , E. M. Bridge , P. Huillery , M. P. A. Jones

Since the original work on Bose-Einstein condensation, quantum degenerate gases of atoms have allowed the quantum emulation of important systems from condensed matter and nuclear physics, as well as the study of novel many-body states with…

Quantum Gases · Physics 2024-10-17 Hyungmok Son , Juliana J. Park , Wolfgang Ketterle , Alan O. Jamison

We explore the possibility of decelerating and Doppler cooling an ensemble of tree-level $\Lambda$-type atoms by a coherent train of short, non-overlapping laser pulses. We show that $\Lambda$-atoms can be Doppler cooled without additional…

Atomic Physics · Physics 2015-06-04 Ekaterina Ilinova , Andrei Derevianko

We demonstrate the laser cooling of 85Rb atoms in a two-dimensional optical lattice. We follow the two-step degenerate Raman sideband cooling scheme [Kerman et al., Phys. Rev. Lett. 84, 439 (2000)], where a fast cooling of atoms to an…

Atomic Physics · Physics 2018-02-06 Chang Huang , Pei-Chen Kuan , Shau-Yu Lan

We present a scheme to cool the motional state of neutral atoms confined in sites of an optical lattice by immersing the system in a superfluid. The motion of the atoms is damped by the generation of excitations in the superfluid, and under…

Quantum Physics · Physics 2009-09-29 A. J. Daley , P. O. Fedichev , P. Zoller

We extend an earlier semiclassical model to describe the dissipative motion of N atoms coupled to M modes inside a coherently driven high-finesse cavity. The description includes momentum diffusion via spontaneous emission and cavity decay.…

Quantum Physics · Physics 2009-11-07 Peter Horak , Helmut Ritsch

A solid-state cooling principle based on magnetic-field-driven tunable suppression of Andreev reflection in superconductor/two-dimensional electron gas nanostructures is proposed. This cooling mechanism can lead to very large heat fluxes…

Superconductivity · Physics 2007-05-23 F. Giazotto , F. Taddei , M. Governale , C. Castellana , R. Fazio , F. Beltram

Engineered ultracold atomic systems are a valuable platform for fundamental quantum mechanics studies and the development of quantum technologies. At near zero absolute temperature, atoms exhibit macroscopic phase coherence and collective…

We propose a physical mechanism for tuning the atom-atom interaction strength at ultra-low temperatures. In the presence of a dc electric field the interatomic potential is changed due to the effective dipole-dipole interaction between the…

Quantum Physics · Physics 2009-01-23 M. Marinescu , L. You

We propose and analyze a new scheme to produce ultracold neutral plasmas deep in the strongly coupled regime. The method exploits the interaction blockade between cold atoms excited to high-lying Rydberg states and therefore does not…

Atomic Physics · Physics 2015-06-15 G. Bannasch , T. C. Killian , T. Pohl

We present a novel optical cooling scheme that relies on hyperfine dark states to enhance loading and cooling atoms inside deep optical dipole traps. We demonstrate a seven-fold increase in the number of atoms loaded in the conservative…

Atomic Physics · Physics 2020-03-04 D. S. Naik , H. Eneriz-Imaz , M. Carey , T. Freegarde , F. Minardi , B. Battelier , P. Bouyer , A. Bertoldi

We present a systematic study on the Raman gray molasses cooling (RGMC) of cesium atoms on the $D_2$ transition. Due to the large splitting in the excited hyperfine transitions of cesium $D_2$ line, it is relatively simple to implement the…

Atomic Physics · Physics 2018-10-03 Ya-Fen Hsiao , Yu-Ju Lin , Ying-Cheng Chen

We present the results of experiments on dynamic nuclear polarization and relaxation of 75As in silicon crystals. Experiments are performed in strong magnetic fields of 4.6 T and temperatures below 1 K. At these conditions donor electron…

Materials Science · Physics 2016-11-15 J. Järvinen , J. Ahokas , S. Sheludyakov , O. Vainio , L. Lehtonen , S. Vasiliev , D. Zvezdov , L. Vlasenko

We demonstrate the production of ultracold polar RbCs molecules in their vibronic ground state, via photoassociation of laser-cooled atoms followed by a laser-stimulated state transfer process. The resulting sample of $X ^1\Sigma^+ (v=0)$…

Atomic Physics · Physics 2009-11-11 J. M. Sage , S. Sainis , T. Bergeman , D. DeMille