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Ground state laser cooling of a single trapped ion is achieved using a technique which tailors the absorption profile for the cooling laser by exploiting electromagnetically induced transparency in the Zeeman structure of a dipole…

Quantum Physics · Physics 2009-11-06 C. F. Roos , D. Leibfried , A. Mundt , F. Schmidt-Kaler , J. Eschner , R. Blatt

We present a computational study of isochoric heating in multi-layered targets at ultra-high intensity laser irradiation (approx. 10**20 W/cm**2). Previous studies have shown enhanced ion heating at interfaces, but at the cost of large…

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 vacuum-ultraviolet laser light, while multielectron atoms need laser…

Quantum Physics · Physics 2009-11-10 David Kielpinski

A novel type of particle "cooling", called Ionization Cooling, is applicable to slow (v of the order of 0.1c) ions stored in a small ring. The many traversals through a thin foil enhance the nuclear reaction probability, in a steady…

High Energy Physics - Phenomenology · Physics 2011-05-18 C. Rubbia , A. Ferrari , Y. Kadi , V. Vlachoudis

Controlling and detecting thermal radiation is of vital importance for varied applications ranging from energy conversion systems and nanoscale information processing devices to infrared imaging, spectroscopy and sensing. We review the…

Optics · Physics 2020-08-05 Xueji Wang , Ryan Starko-Bowes , Chinmay Khandekar , Zubin Jacob

Sympathetic cooling of trapped ions has become an indispensable tool for quantum information processing and precision spectroscopy. In the simplest situation a single Doppler-cooled ion sympathetically cools another ion which typically has…

Atomic Physics · Physics 2013-05-30 Jannes B. Wübbena , Sana Amairi , Olaf Mandel , Piet O. Schmidt

We present first indications of sympathetic cooling between two neutral, optically trapped atomic species. Lithium and cesium atoms are simultaneously stored in an optical dipole trap formed by the focus of a CO$_2$ laser, and allowed to…

Atomic Physics · Physics 2017-08-23 S. Kraft , M. Mudrich , K. Singer , R. Grimm , A. Mosk , M. Weidemueller

We discuss the possibility to build a neutron target for nuclear reaction studies in inverse kinematics utilizing a storage ring and radioactive ion beams. The proposed neutron target is a specially designed spallation target surrounded by…

Instrumentation and Detectors · Physics 2017-05-01 René Reifarth , Kathrin Göbel , Tanja Heftrich , Mario Weigand , Beatriz Jurado , Franz Käppeler , Yuri A. Litvinov

We are proposing a novel method of laser heating control only through change in polarization of the incident light, keeping its power density constant. The idea combines antenna effect found in isolated multi-walled carbon nanotubes and the…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 M. Zdrojek , J. Judek , M. Wasik

An effective ion catcher is an important part of a radioactive beam facility that is based on in-flight production. The catcher stops fast radioactive products and emits them as singly charged slow ions. Current ion catchers are based on…

We discuss the basis of polarized positron production by low energy polarized electrons. Efficiency of conversion ~0.1-1% might be interesting for CEBAF facility and ILC as well.

Accelerator Physics · Physics 2016-10-18 Alexander Mikhailichenko

We demonstrate the ability to load, cool and detect singly-charged calcium ions in a surface electrode trap using only visible and infrared lasers for the trapped-ion control. As opposed to the standard methods of cooling using…

Atomic Physics · Physics 2017-07-27 F. Lindenfelser , M. Marinelli , V. Negnevitsky , S. Ragg , J. P. Home

For experiments that require a quantum system to be in the ultra-cold regime, laser cooling is an essential tool. While techniques for laser cooling ions and neutral atoms have been refined and temperatures below the Doppler limit have been…

Atomic Physics · Physics 2024-10-31 Caleb Heuvel-Horwitz , S. F. Yelin

Doppler cooling with lasers is essential to ions' trapping and also a preliminary step towards achievement of ultracold ions. Due to lack of effective tools, experimentally monitoring the ions' temperature and the laser-ion coupling is…

Atomic Physics · Physics 2019-10-08 Lei-Lei Yan , Shi-Lei Su , Mang Feng

A recent progress on laser cooling of molecules is summarized. Since the development during 1980s for atomic species, laser cooling has been the very beginning step to cool and trap atoms for frontier research on quantum simulations,…

Atomic Physics · Physics 2023-03-29 Eunmi Chae

Accelerated muon beams have been considered for next-generation studies of high-energy lepton-antilepton collisions and neutrino oscillations. However, high-brightness muon beams have not yet been produced. The main challenge for muon…

Accelerator Physics · Physics 2023-10-16 The MICE Collaboration , M. Bogomilov , R. Tsenov , G. Vankova-Kirilova , Y. P. Song , J. Y. Tang , Z. H. Li , R. Bertoni , M. Bonesini , F. Chignoli , R. Mazza , A. de Bari , D. Orestano , L. Tortora , Y. Kuno , H. Sakamoto , A. Sato , S. Ishimoto , M. Chung , C. K. Sung , F. Filthaut , M. Fedorov , D. Jokovic , D. Maletic , M. Savic , N. Jovancevic , J. Nikolov , M. Vretenar , S. Ramberger , R. Asfandiyarov , A. Blondel , F. Drielsma , Y. Karadzhov , S. Boyd , J. R. Greis , T. Lord , C. Pidcott , I. Taylor , G. Charnley , N. Collomb , K. Dumbell , A. Gallagher , A. Grant , S. Griffiths , T. Hartnett , B. Martlew , A. Moss , A. Muir , I. Mullacrane , A. Oates , P. Owens , G. Stokes , P. Warburton , C. White , D. Adams , V. Bayliss , J. Boehm , T. W. Bradshaw , C. Brown , M. Courthold , J. Govans , T. Hayler , M. Hills , J. B. Lagrange , C. Macwaters , A. Nichols , R. Preece , S. Ricciardi , C. Rogers , T. Stanley , J. Tarrant , M. Tucker , S. Watson , A. Wilson , R. Bayes , J. C. Nugent , F. J. P. Soler , G. T. Chatzitheodoridis , A. J. Dick , K. Ronald , C. G. Whyte , A. R. Young , R. Gamet , P. Cooke , V. J. Blackmore , D. Colling , A. Dobbs , P. Dornan , P. Franchini , C. Hunt , P. B. Jurj , A. Kurup , K. Long , J. Martyniak , S. Middleton , J. Pasternak , M. A. Uchida , J. H. Cobb , C. N. Booth , P. Hodgson , J. Langlands , E. Overton , V. Pec , P. J. Smith , S. Wilbur , M. Ellis , R. B. S. Gardener , P. Kyberd , J. J. Nebrensky , A. DeMello , S. Gourlay , A. Lambert , D. Li , T. Luo , S. Prestemon , S. Virostek , M. Palmer , H. Witte , D. Adey , A. D. Bross , D. Bowring , A. Liu , D. Neuffer , M. Popovic , P. Rubinov , B. Freemire , P. Hanlet , D. M. Kaplan , T. A. Mohayai , D. Rajaram , P. Snopok , Y. Torun , L. M. Cremaldi , D. A. Sanders , L. R. Coney , G. G. Hanson , C. Heidt

A rational approach to identify polyatomic molecules that appear to be promising candidates for direct Doppler cooling with lasers is outlined. First-principle calculations for equilibrium structures and Franck--Condon factors of selected…

Chemical Physics · Physics 2016-03-22 Timur Isaev , Robert Berger

Excellent jet energy measurement is important at the International Linear Collider (ILC) because most of interesting physics processes decay into multi-jet final states. We employ a particle flow method to reconstruct particles, hence…

The physics of compact objects is one of the very actively developing branches of theoretical investigations, since the careful analysis of different models for the internal structure of these objects, their evolutionary characteristics and…

Astrophysics · Physics 2007-05-23 Hovik Grigorian

Understanding the dynamics of positron cooling in gases, including the fraction of positrons surviving to thermalisation, is critical for accurate interpretation of positron lifetime spectra, for the development of efficient positron…

Atomic Physics · Physics 2017-11-22 D. G. Green
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