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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

The prospects for shielding ultracold, paramagnetic, dipolar molecules from inelastic and chemical collisions are investigated. Molecules placed in their first rotationally excited states are found to exhibit effective long-range repulsion…

Atomic Physics · Physics 2016-01-20 Goulven Quéméner , John L. Bohn

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

A quantum simulator based on ultracold optically trapped atoms for simulating the physics of atoms and molecules in ultrashort intense laser fields is introduced. The slowing down by about 13 orders of magnitude allows to watch in slow…

Atomic Physics · Physics 2017-02-01 Simon Sala , Johann Förster , Alejandro Saenz

Ultracold polar molecules are an ideal platform for studying many-body physics with long-range dipolar interactions. Experiments in this field have progressed enormously, and several groups are pursuing advanced apparatus for manipulation…

Atomic Physics · Physics 2018-04-27 Jacob P. Covey , Luigi De Marco , Oscar L. Acevedo , Ana Maria Rey , Jun Ye

This article presents a review of the current state of the art in the research field of cold and ultracold molecules. It serves as an introduction to the Special Issue of the New Journal of Physics on Cold and Ultracold Molecules and…

Quantum Physics · Physics 2010-10-04 Lincoln D. Carr , David DeMille , Roman V. Krems , Jun Ye

Compressing electron pulses is important in many applications of electron beam systems. In this study, we propose to use optical beat notes to compress electron pulses. The beat frequency is chosen to match the initial electron pulse…

Accelerator Physics · Physics 2021-11-23 Zhexin Zhao , Kenneth J. Leedle , Dylan S. Black , Olav Solgaard , Robert L. Byer , Shanhui Fan

A high-intensity supersonic beam source has been a key component in studies of molecular collisions, molecule-surface interaction, chemical reactions, and precision spectroscopy. However, the molecular density available for experiments in a…

Chemical Physics · Physics 2018-08-03 Hao Wu , David Reens , Tim Langen , Yuval Shagam , Daniela Fontecha , Jun Ye

We propose to sympathetically slow and cool polar molecules in a cold, low-density beam using laser-cooled Rydberg atoms. The elastic collision cross sections between molecules and Rydberg atoms are large enough to efficiently thermalize…

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

Short laser pulses are widely used for controlling molecular rotational degrees of freedom and inducing molecular alignment, orientation, unidirectional rotation and other types of coherent rotational motion. To follow the ultra-fast…

Plasmonic excitations decay within femtoseconds, leaving non-thermal (often referred to as "hot") charge carriers behind that can be injected into molecular structures to trigger chemical reactions that are otherwise out of reach -- a…

Materials Science · Physics 2025-01-28 Jakub Fojt , Paul Erhart , Christian Schäfer

In the past two decades, the revolutionary technologies of creating cold and ultracold molecules have provided cutting-edge experiments for studying the fundamental phenomena of collision physics. To a large degree, the recent explosion of…

Atomic Physics · Physics 2022-01-25 Yang Liu , Le Luo

We propose an approach for studying quantum information and performing high resolution spectroscopy of rotational states of trapped molecular ions using an on-chip superconducting microwave resonator. Molecular ions have several advantages…

Mesoscale and Nanoscale Physics · Physics 2011-05-24 D. I. Schuster , Lev S. Bishop , I. L. Chuang , D. DeMille , R. J. Schoelkopf

We describe a method for cooling neutral molecules that have magnetic and electric dipole moments using collisions with cold ions. An external magnetic field is used to split the ground rovibrational energy levels of the molecule. The…

Atomic Physics · Physics 2014-08-22 F. Robicheaux

When a few tens of charged particles are trapped in a spherical electrostatic potential at low temperature they form concentric shells resembling atoms. These ``artificial atoms'' can be easily controlled by varying the confinement…

Statistical Mechanics · Physics 2009-11-13 A. Filinov , J. Böning , M. Bonitz , Yu. E. Lozovik

Intense, pulsed ion beams locally heat materials and deliver dense electronic excitations that can induce materials modifications and phase transitions. Materials properties can potentially be stabilized by rapid quenching. Pulsed ion beams…

Applied Physics · Physics 2017-05-30 John J. Barnard , Thomas Schenkel

Theoretical calculations, applying elements of the orbital-based density functional method for self-consistent screening in an electron gas to the stopping power of metals for slow projectiles are reviewed, by focusing on differences in…

Other Condensed Matter · Physics 2020-12-08 I. Nagy , I. Aldazabal

Collision cross sections and rate constants between two ground- state oxygen molecules are investigated theoretically at translational energies below $\sim 1$K and in zero magnetic field. We present calculations for elastic and spin-…

Atomic Physics · Physics 2009-11-07 Alexandr V. Avdeenkov , John L. Bohn

We propose a new laser cooling method for atomic species whose level structure makes traditional laser cooling difficult. For instance, laser cooling of hydrogen requires single-frequency vacuum-ultraviolet light, while multielectron atoms…

Atomic Physics · Physics 2015-06-26 D. Kielpinski