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Molecular collisions can be studied at very low relative kinetic energies, in the milliKelvin range, by merging codirectional beams with much higher translational energies, extending even to the kiloKelvin range, provided that the beam…

Chemical Physics · Physics 2015-06-05 Qi Wei , Igor Lyuksyutov , Dudley Herschbach

Direct laser cooling of molecules has made significant progress in recent years. However, the selective cooling and manipulation of molecules based on their isotopic composition, which is ubiquitous in atomic laser cooling, has not yet been…

In this paper we report on the production and characterization of a cold beam of BaOH molecules using a cryogenic buffer-gas beam source. BaOH is a highly suitable molecule for studies of the violation of fundamental symmetries, such as the…

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…

We present a method to design a finite decay rate for excited rotational states in polar molecules. The setup is based on a hybrid system of polar molecules with atoms driven into a Rydberg state. The atoms and molecules are coupled via the…

Quantum Gases · Physics 2012-05-15 Sebastian D. Huber , Hans Peter Büchler

Many types of molecular motors have been proposed and synthesized in recent years, displaying different kinds of motion, and fueled by different driving forces such as light, heat, or chemical reactions. We propose a new type of molecular…

Mesoscale and Nanoscale Physics · Physics 2010-11-24 Johannes S. Seldenthuis , Ferry Prins , Joseph M. Thijssen , Herre S. J. van der Zant

Increasing the luminosity of relativistic hadron beams is critical for the advancement of nuclear physics. Coherent electron cooling (CEC) promises to cool such beams significantly faster than alternative methods. We present simulations of…

Ultracold atom-based electron sources have recently been proposed as an alternative to the conventional photo-injectors or thermionic electron guns widely used in modern particle accelerators. The advantages of ultracold atom-based electron…

Accelerator Physics · Physics 2015-06-19 G. Xia , M. Harvey , A. J. Murray , L. Bellan , W. Bertsche , R. B. Appleby , O. Mete , S. Chattopadhyay

We present a compact source of cold sodium atoms suitable for the production of quantum degenerate gases and versatile for a multi-species experiment. The magnetic field produced by permanent magnets allows to simultaneously realize a…

Quantum Gases · Physics 2013-06-12 G. Lamporesi , S. Donadello , S. Serafini , G. Ferrari

We outline the design and characterization of a laser pulse shaper, which creates an ``ultraslow optical centrifuge'' - a linearly polarized field whose polarization vector rotates with arbitrarily low angular acceleration. By directly…

Chemical Physics · Physics 2026-03-12 Kevin Wang , Ian MacPhail-Bartley , Cameron E. Peters , Valery Milner

The possibility of a significant slowdown of particles by removing them from a localized state in an electromagnetic potential well with a fixed spatial distribution is shown with a sufficiently slow decrease in the depth of this well with…

General Physics · Physics 2022-09-22 Azad Izmailov

We propose a highly efficient and fast method of translational cooling for high-angular-momentum atoms. Optical pumping and stimulated transitions, combined with magnetic forces, can be used to compress phase-space density, and the…

Atomic Physics · Physics 2023-10-03 Logan E. Hillberry , Dmitry Budker , Simon M. Rochester , Mark G. Raizen

Strong laser-induced magnetization of oxygen gas at room temperature and atmospheric pressure is achieved experimentally on the sub-nanosecond time scale. The method is based on controlling the electronic spin of paramagnetic molecules by…

Quantum Physics · Physics 2017-06-21 A. A. Milner , A. Korobenko , V. Milner

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

We introduce a new optical tool - a "two-dimensional optical centrifuge", capable of aligning molecules in extreme rotational states. Unlike the conventional centrifuge, which confines the molecules in the plane of their rotation, its…

Chemical Physics · Physics 2016-05-18 A. A. Milner , A. Korobenko , V. Milner

Atomic physics was revolutionized by the development of forced evaporative cooling: it led directly to the observation of Bose-Einstein condensation, quantum-degenerate Fermi gases, and ultracold optical lattice simulations of condensed…

Atomic Physics · Physics 2015-06-11 Benjamin K. Stuhl , Matthew T. Hummon , Mark Yeo , Goulven Quéméner , John L. Bohn , Jun Ye

Recently, laser cooling methods have been extended from atoms to molecules. The complex rotational and vibrational energy level structure of molecules makes laser cooling difficult, but these difficulties have been overcome and molecules…

Atomic Physics · Physics 2019-02-18 M. R. Tarbutt

We demonstrate experimentally a method of all-optical selective rotational control in gas mixtures. Using an optical centrifuge - an intense laser pulse whose linear polarization rotates at an accelerated rate, we simultaneously excite two…

Chemical Physics · Physics 2024-06-19 P. Amani , A. A. Milner , V. Milner

We present an intense source of $^{87}$Rb atoms that has been set up to produce a continuous, slow and cold beam in a magnetic guide. It consists of a two-dimensional magneto-optical trap whose cooling laser power is provided by a…

Condensed Matter · Physics 2009-11-07 C. F. Roos , P. Cren , J. Dalibard , D. Guéry-Odelin

We propose a general method to cool the translational motion of molecules. Our method is an extension of single photon atomic cooling which was successfully implemented in our laboratory. Requiring a single event of absorption followed by a…

Chemical Physics · Physics 2015-05-13 Edvardas Narevicius , S. Travis Bannerman , Mark G. Raizen
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