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Arrays of highly excited Rydberg atoms can be used as powerful quantum simulation platforms. Here, we introduce an approach that makes it possible to implement fully controllable effective spin interactions in such systems. We show that…

Quantum Physics · Physics 2022-12-01 Xiaoling Wu , Fan Yang , Shuo Yang , Klaus Mølmer , Thomas Pohl , Meng Khoon Tey , Li You

Focused electron beam induced deposition (FEBID) is a powerful technique for 3D-printing of complex nanodevices. However, for resolutions below 10 nm, it struggles to control size, morphology and composition of the structures, due to a lack…

We propose a novel type of Rydberg dimer, consisting of a Rydberg-state atom bound to a distant positive ion. The molecule is formed through long-range electric-multipole interaction between the Rydberg atom and the point-like ion. We…

Atomic Physics · Physics 2021-05-14 A. Duspayev , X. Han , M. A. Viray , L. Ma , J. Zhao , G. Raithel

We present a fast and Quasideterministic protocol for the production of single ions and electrons from a cloud of laser cooled atoms. The approach is based on a two-step process where first a single Rydberg atom is photo-excited from a…

Atomic Physics · Physics 2013-06-04 C. Ates , I. Lesanovsky , C. S. Adams , K. J. Weatherill

This article presents a numerical model dedicated to the simulation of field ion microscopy (FIM). FIM was the first technique to image individual atoms on the surface of a material. By a careful control of the field evaporation of the…

The complexity of ultrafast molecular photoionization presents an obstacle to the modelling of pump-probe experiments. Here, a simple optimized model of atomic rubidium is combined with a molecular dynamics model to predict quantitatively…

Atomic Physics · Physics 2013-05-29 Hugo E. L. Martay , David J. McCabe , Duncan G. England , Ian A. Walmsley

We review Rydberg aggregates, assemblies of a few Rydberg atoms exhibiting energy transport through collective eigenstates, considering isolated atoms or assemblies embedded within clouds of cold ground-state atoms. We classify Rydberg…

Atomic Physics · Physics 2018-02-14 S. Wüster , J. -M. Rost

New experimental quantum simulation platforms have recently been implemented with divalent atoms trapped in optical tweezer arrays with promising performance. The second valence electron also brings new propects through the so-called…

Atomic Physics · Physics 2022-06-15 Ky-Luc Pham , Thomas Gallagher , Pierre Pillet , Steven Lepoutre , Patrick Cheinet

To this day the interaction of high-intensity lasers with matter is considered to be a possible candidate for next generation particle accelerators. Within the LIGHT collaboration crucial work for the merging of a high-intensity laser…

Accelerator Physics · Physics 2018-12-26 J. Ding , D. Schumacher , D. Jahn , A. Blazevic , M. Roth

Generation of highly collimated monoenergetic relativistic ion beams is one of the most challenging and promising areas in ultra-intense laser-matter interactions because of the numerous scientific and technological applications that…

Plasma Physics · Physics 2021-01-20 Tianhong Wang , Vladimir Khudik , Gennady Shvets

A novel radiation pressure acceleration (RPA) regime of heavy ion beams from laser-irradiated ultrathin foils is proposed by self-consistently taking into account the ionization dynamics. In this regime, the laser intensity is required to…

Plasma Physics · Physics 2015-06-19 Dong Wu , B. Qiao , X. T. He , C. McGuffey , F. N. Beg

A very intense gamma beam of the Gamma Factory facility proposed at CERN can be used to generate radioactive ion beams (RIBs) with high production yields and study the structure of exotic neutron-rich nuclei. The radioactive nuclides are…

Nuclear Experiment · Physics 2021-12-15 Dragos Nichita , Dimiter Balabanski , Paul Constantin , Witold Krasny , Wieslaw Placzek

Laser wakefield acceleration (LWFA) in a gas cell target separating injection and acceleration section has been investigated to produce high-quality electron beams. A detailed study has been performed on controlling the quality of…

Plasma Physics · Physics 2024-01-30 Srimanta Maity , Alamgir Mondal , Eugene Vishnyakov , Alexander Molodozhentsev

We present a method to control collisions between ultracold neutral atoms in the electronic ground state and trapped ions. During the collision, the neutral atom is resonantly excited by a laser to a low-field-seeking Rydberg state, which…

Quantum Gases · Physics 2020-06-24 Limei Wang , Markus Deiß , Georg Raithel , Johannes Hecker Denschlag

We present a novel laser based ion acceleration scheme, where a petawatt circularly polarized laser pulse is shot on an ultra-thin (nano-scale) double-layer target. Our scheme allows the production of high-quality light ion beams with both…

Plasma Physics · Physics 2013-09-06 M. Grech , S. Skupin , R. Nuter , L. Gremillet , E. Lefebvre

Particle transport, acceleration and energisation are phenomena of major importance for both space and laboratory plasmas. Despite years of study, an accurate theoretical description of these effects is still lacking. Validating models with…

For the laser wakefield acceleration, suppression of beam energy spread while keeping sufficient charge is one of the key challenges. In order to achieve this, we propose bichromatic laser ionization injection with combined laser…

Plasma Physics · Physics 2016-06-29 Ming Zeng , Ji Luo , Min Chen , Warren B. Mori , Zheng-Ming Sheng , Bernhard Hidding

We have developed a quite stringent method in selectivity to ionize the low angular- momentum ($\ell$) states which lie below and above the adjacent manifold in highly excited Rb Rydberg atoms. The method fully exploits the pulsed…

Studies of ion-molecule reactions at low temperatures are difficult because stray electric fields in the reaction volume affect the kinetic energy of charged reaction partners. We describe a new experimental approach to study ion-molecule…

We demonstrate a compact ion beam device capable of accelerating H$^+$ and D$^+$ ions up to 75keV energy, on to a solid target, with sufficient beam current to study fusion reactions. The ion beam system uses a microwave driven plasma…

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