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Related papers: Deceleration of continuous molecular beams

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We demonstrate experimentally the continuous and pulsed loading of a slow and cold atomic beam into a magnetic guide. The slow beam is produced using a vapor loaded laser trap, which ensures two-dimensional magneto-optical trapping, as well…

Condensed Matter · Physics 2015-06-24 P. Cren , C. F. Roos , A. Aclan , J. Dalibard , D. Guéry-Odelin

We propose a mechanism to realize high-yield molecular formation from ultracold atoms. Atom pairs are continuously excited by a laser, and a collective decay into the molecular ground state is induced by a coupling to a lossy cavity mode.…

Deterministic entanglement of neutral cold atoms can be achieved by combining several already available techniques like the creation/dissociation of neutral diatomic molecules, manipulating atoms with micro fabricated structures (atom…

We propose a cooling scheme to prepare stationary entanglement of neutral atoms in the Rydberg blockade regime by combination of periodically collective laser pumping and dissipation. In each cycle, the controlled unitary dynamics process…

Quantum Physics · Physics 2022-09-07 Wei-Lin Mu , Xiao-Xuan Li , Xiao-Qiang Shao

We report on Bose-Einstein condensation (BEC) in a gas of strontium atoms, using laser cooling as the only cooling mechanism. The condensate is formed within a sample that is continuously Doppler cooled to below 1\muK on a narrow-linewidth…

Quantum Gases · Physics 2013-09-24 Simon Stellmer , Benjamin Pasquiou , Rudolf Grimm , Florian Schreck

Polar molecules represent a promising platform for quantum simulation and computation protocols. Highly controllable arrays of optical tweezers are now accessible in experiments, allowing for unprecedented control of individual molecules.…

Atomic Physics · Physics 2026-03-31 Sakthikumaran Ravichandran , Piotr Kulik , Krzysztof Jachymski

We report on the creation of a degenerate dipolar Fermi gas of erbium atoms. We force evaporative cooling in a fully spin-polarized sample down to temperatures as low as 0.2 times the Fermi temperature. The strong magnetic dipole-dipole…

Quantum Gases · Physics 2014-05-09 K. Aikawa , A. Frisch , M. Mark , S. Baier , R. Grimm , F. Ferlaino

Precision spectroscopic measurements in atoms and molecules play an increasingly important role in chemistry and physics, e.g., to characterize structure and dynamics at long timescales, to determine physical constants, or to search for…

In this article we focus on the propagation of a beam of particles guided by a transversely confining potential. We consider different regimes. In the classical regime, we describe the beam by means of a set of hydrodynamic-like equations.…

Soft Condensed Matter · Physics 2009-11-07 T. Lahaye , P. Cren , C. Roos , D. Guéry-Odelin

We present new techniques in cooling 39K atoms using laser light close to the D1 transition. First, a new compressed-MOT configuration is taking advantage of gray molasses type cooling induced by blue-detuned D1 light. It yields an…

Quantum Gases · Physics 2015-06-17 G. Salomon , L. Fouché , P. Wang , A. Aspect , P. Bouyer , T. Bourdel

Molecules are the building blocks of matter and their control is key to the investigation of new quantum phases, where rich degrees of freedom can be used to encode information and strong interactions can be precisely tuned. Inelastic…

Quantum Gases · Physics 2021-01-27 Giacomo Valtolina , Kyle Matsuda , William G. Tobias , Jun-Ru Li , Luigi De Marco , Jun Ye

We revisit the problem of deceleration of a charge moving in a medium. Going beyond the traditional approach, which relies on Ehrenfest dynamics, we treat the projectile fully quantum mechanically, on the same footing as the electrons of…

Materials Science · Physics 2025-10-31 Vladimir U. Nazarov , E. K. U. Gross

We present a comprehensive characterization of cold molecular beams from a cryogenic buffer-gas cell, providing an insight into the physics of buffer-gas cooling. Cold molecular beams are extracted from a cryogenic cell by electrostatic…

Chemical Physics · Physics 2018-12-04 X. Wu , T. Gantner , M. Zeppenfeld , S. Chervenkov , G. Rempe

We present a novel route to Bose-Einstein condensation devised for two-electron atoms, which do not admit practicable cooling techniques based upon narrow intercombination lines. A dipole trap for $^{40}$Ca atoms in the singlet ground state…

Quantum Gases · Physics 2012-11-13 Purbasha Halder , Chih-Yun Yang , Andreas Hemmerich

The last few years have seen rapid progress in the application of laser cooling to molecules. In this review, we examine what kinds of molecules can be laser cooled, how to design a suitable cooling scheme, and how the cooling can be…

Atomic Physics · Physics 2021-12-14 N. J. Fitch , M. R. Tarbutt

Laser slowing of CaF molecules down to the capture velocity of a magneto-optical trap (MOT) for molecules is achieved. Starting from a two-stage buffer gas beam source, we apply frequency-broadened "white-light" slowing and observe…

We have studied a general technique for laser cooling a cloud of polarized trapped atoms down to the Doppler temperature. A one-dimensional optical molasses using polarized light cools the axial motional degree of freedom of the atoms in…

Quantum Physics · Physics 2016-08-16 Piet O. Schmidt , Sven Hensler , Jörg Werner , Thomas Binhammer , Axel Görlitz , Tilman Pfau

A constant intensity beam that propagates into a stationary plasma results in a bump-on-tail feature in velocity space. This results in an instability that transfers kinetic energy from the plasma to the electric field. We show that there…

Plasma Physics · Physics 2024-11-26 Lukas Einkemmer

We report the observation of collective-emission-induced, velocity-dependent light forces. One third of a falling sample containing 3 x 10^6 cesium atoms illuminated by a horizontal standing wave is stopped by cooperatively emitting light…

Quantum Physics · Physics 2009-11-07 Hilton W. Chan , Adam T. Black , Vladan Vuletic

We report the creation and characterization of a near quantum-degenerate gas of polar $^{40}$K-$^{87}$Rb molecules in their absolute rovibrational ground state. Starting from weakly bound heteronuclear KRb Feshbach molecules, we implement…