中文
相关论文

相关论文: Continuous all-optical deceleration and single-pho…

200 篇论文

We propose a scheme for laser cooling of negatively charged molecules. We briefly summarise the requirements for such laser cooling and we identify a number of potential candidates. A detailed computation study with C$\_2^-$, the most…

原子物理 · 物理学 2015-06-23 Pauline Yzombard , Mehdi Hamamda , Sebastian Gerber , Michael Doser , Daniel Comparat

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…

原子物理 · 物理学 2023-10-03 Logan E. Hillberry , Dmitry Budker , Simon M. Rochester , Mark G. Raizen

We study laser cooling of atomic gases by collisional redistribution of fluorescence. In a high pressure buffer gas regime, frequent collisions perturb the energy levels of alkali atoms, which allows for the absorption of a far red detuned…

We present an opto-electrical cooling scheme for polar molecules based on a Sisyphus-type cooling cycle in suitably tailored electric trapping fields. Dissipation is provided by spontaneous vibrational decay in a closed level scheme found…

量子物理 · 物理学 2009-10-07 M. Zeppenfeld , M. Motsch , P. W. H. Pinkse , G. Rempe

Employing a two-stage cryogenic buffer gas cell, we produce a cold, hydrodynamically extracted beam of calcium monohydride molecules with a near effusive velocity distribution. Beam dynamics, thermalization and slowing are studied using…

原子物理 · 物理学 2017-09-13 Hsin-I Lu , Julia Rasmussen , Matthew J. Wright , Dave Patterson , John M. Doyle

We present a novel optical cooling scheme that relies on hyperfine dark states to enhance loading and cooling atoms inside deep optical dipole traps. We demonstrate a seven-fold increase in the number of atoms loaded in the conservative…

原子物理 · 物理学 2020-03-04 D. S. Naik , H. Eneriz-Imaz , M. Carey , T. Freegarde , F. Minardi , B. Battelier , P. Bouyer , A. Bertoldi

We demonstrate simultaneous deceleration and trapping of a cold atomic and molecular mixture. This is the first step towards studies of cold atom-molecule collisions at low temperatures as well as application of sympathetic cooling. Both…

We use two-dimensional transverse laser cooling to produce an ultracold beam of YbF molecules. Through experiments and numerical simulations, we study how the cooling is influenced by the polarization configuration, laser intensity, laser…

I propose a method of deceleration and continuous loading of an atom beam into a far-off-resonance optical lattice. The loading of moving atoms into a conservative far-off-resonance potential requires the removal of the atom's excess…

原子物理 · 物理学 2015-06-18 Vladyslav V. Ivanov

We experimentally demonstrate a variation on a Sisyphus cooling technique that was proposed for cooling antihydrogen. In our implementation, atoms are selectively excited to an electronic state whose energy is spatially modulated by an…

All light has structure, but only recently it has become possible to construct highly controllable and precise potentials so that most laboratories can harness light for their specific applications. In this chapter, we review the emerging…

Ultracold molecules, because of their rich internal structures and interactions, have been proposed as a promising platform for quantum science and precision measurement. Direct laser-cooling promises to be a rapid and efficient way to…

原子物理 · 物理学 2024-06-18 Yukai Lu , Samuel J. Li , Connor M. Holland , Lawrence W. Cheuk

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…

量子气体 · 物理学 2012-05-15 Sebastian D. Huber , Hans Peter Büchler

Continuous wave (CW) lasers are the enabling technology for producing ultracold atoms and molecules through laser cooling and trapping. The resulting pristine samples of slow moving particles are the de facto starting point for both…

原子物理 · 物理学 2016-10-19 A. M. Jayich , X. Long , W. C. Campbell

A strongly coupled ultracold plasma can be used as an excellent test platform for studying many-body interactions associated with various plasma phenomena. In this paper we discuss an approach that makes possible creation of the…

等离子体物理 · 物理学 2024-10-02 B. B. Zelener , E. V. Vilshanskaya , N. V. Morozov , S. A. Saakyan , A. A. Bobrov , B. V. Zelener

We introduce a scheme for deep laser cooling of molecules based on robust dark states at zero velocity. By simulating this scheme, we show it to be a widely applicable method that can reach the recoil limit or below. We demonstrate and…

原子物理 · 物理学 2019-07-24 L. Caldwell , J. A. Devlin , H. J. Williams , N. J. Fitch , E. A. Hinds , B. E. Sauer , M. R. Tarbutt

We propose a novel cooling scheme for realising single photon sideband cooling on particles trapped in a state-dependent optical potential. We develop a master rate equation from an ab-initio model and find that in experimentally feasible…

量子气体 · 物理学 2022-02-11 Federico Berto , Elia Perego , Lucia Duca , Carlo Sias

High-density and ultracold atomic gases have emerged as promising media for storage of individual photons for quantum memory applications. In this paper we provide an overview of our theoretical and experimental efforts in this direction,…

量子物理 · 物理学 2015-05-18 I. M. Sokolov , D. V. Kupriyanov , R. G. Olave , M. D. Havey

We demonstrate slowing and longitudinal cooling of a supersonic beam of CaF molecules using counter-propagating laser light resonant with a closed rotational and almost closed vibrational transition. A group of molecules are decelerated by…

Laser cooling and trapping of atoms and atomic ions has led to numerous advances including the observation of exotic phases of matter, development of exquisite sensors and state-of-the-art atomic clocks. The same level of control in…