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We describe new techniques in the construction of optical lattices to realize a coherent atom-based microscope, comprised of two atomic species used as target and probe atoms, each in an independently controlled optical lattice. Precise and…

Compact, lightweight, and energy-efficient cold atom systems are crucial for advancing quantum technologies, yet their realization remains constrained by the bulky optical and magnetic components required in current atom trapping…

We store and control ultra-cold atoms in a new type of trap using magnetic fields of vortices in a high temperature superconducting micro-structure. This is the first time ultra-cold atoms have been trapped in the field of magnetic flux…

原子物理 · 物理学 2015-05-14 T. Müller , B. Zhang , R. Fermani , K. S. Chan , Z. W. Wang , C. B. Zhang , M. J. Lim , R. Dumke

We propose and experimentally demonstrate a novel scheme to magneto-optically trap neutral atoms in a ring shaped trap that can be used to transfer atoms into a circular magnetic trap with high density. This inturn enables to evaporatively…

其他凝聚态物理 · 物理学 2007-05-23 Makoto Morinaga

We have realized a hybrid optomechanical system by coupling ultracold atoms to a micromechanical membrane. The atoms are trapped in an optical lattice, which is formed by retro-reflection of a laser beam from the membrane surface. In this…

We present a theoretical study of correlated atomic wires deposited on substrates in two parts. In this first part, we propose lattice models for a one-dimensional quantum wire on a three-dimensional substrate and map them onto effective…

强关联电子 · 物理学 2017-08-09 Anas Abdelwahab , Eric Jeckelmann , Martin Hohenadler

Magnetic traps for cold atoms have become a powerful tool of cold atom physics and condense matter research. The traps on superconducting chips allow one to increase the trapped atom life- and coherence time by decreasing the thermal noise…

超导电性 · 物理学 2015-06-19 Vladimir Sokolovsky , Leonid Prigozhin , John W. Barrett

We create a gray optical lattice structure using a blue detuned laser field coupling an atomic ground state of angular momentum J simultaneously to two excited states with angular momenta J and J-1. The atoms are cooled and trapped at…

原子物理 · 物理学 2009-10-30 H. Stecher , H. Ritsch , P. Zoller , F. Sander , T. Esslinger , T. W. Hansch

We study a system of ultra-cold atoms possessing long range interaction (e.g. dipole-dipole interaction) in a one dimensional optical lattice in the presence of a confining harmonic trap. We have shown that for large enough on-site and…

量子气体 · 物理学 2010-11-12 Tapan Mishra , Sunethra Ramanan , Ramesh V. Pai , Meetu Sethi Luthra , B. P. Das

We report on the experimental realization of a conservative optical lattice for cold atoms with sub-wavelength spatial structure. The potential is based on the nonlinear optical response of three-level atoms in laser-dressed dark states,…

Ultracold atom-traps on a chip enhances the practical application of atom traps in quantum information processing, sensing, and metrology. Plasmon mediated near-field optical potentials are promising for trapping atoms. The combination of…

A new geometry of optical lattice is proposed, namely a lattice made of a 1D stack of ring traps. It is obtained though the interference pattern of two counterpropagating beams: one of the beam is a standard gaussian beam, while the other…

原子物理 · 物理学 2007-05-23 Philippe Verkerk , Daniel Hennequin

We propose a method for separating trapped atoms in optical lattices by large distances. The key idea is the cyclic transfer of atoms between two lattices of variable spacing, known as accordion lattices, each covering at least a factor of…

量子气体 · 物理学 2023-04-19 Simon Wili , Tilman Esslinger , Konrad Viebahn

We describe a simple technique for generating a cold-atom lattice pierced by a uniform magnetic field. Our method is to extend a one-dimensional optical lattice into the "dimension" provided by the internal atomic degrees of freedom,…

量子气体 · 物理学 2014-01-30 A. Celi , P. Massignan , J. Ruseckas , N. Goldman , I. B. Spielman , G. Juzeliunas , M. Lewenstein

We report on the epitaxial growth and the characterization of thin FePt films and the subsequent patterning of magnetic lattice structures. These structures can be used to trap ultracold atoms for quantum simulation experiments. We use…

原子物理 · 物理学 2018-09-28 A. L. La Rooij , S. Couet , M. C. van der Krogt , A. Vantomme , K. Temst , R. J. C. Spreeuw

We design magnetic traps for atoms based on the average magnetic field of vortices induced in a type-II superconducting thin film. This magnetic field is the critical ingredient of the demonstrated vortex-based atom traps, which operate…

原子物理 · 物理学 2015-05-18 B. Zhang , R. Fermani , T. Mueller , M. J. Lim , R. Dumke

Standard optical potentials use off-resonant laser standing wave induced AC-Stark shift. In a recent development [Phys. Rev. Lett. {\bf 117}, 233001 (2016)] a three-level scheme in $\Lambda$ configuration coupled coherently by resonant…

量子气体 · 物理学 2021-11-24 Piotr Kubala , Jakub Zakrzewski , Mateusz Łącki

We present an effective and fast (few microseconds) procedure for transferring ultra-cold atoms from the ground state in a harmonic trap into the desired bands of an optical lattice. Our shortcut method is a designed pulse sequence where…

原子物理 · 物理学 2018-05-15 Xiaoji Zhou , Shengjie Jin , J. Schmiedmayer

Cold atom optical lattices allow for the study of quantum localization and mobility edges in a disorder-free environment. We predict the existence of an Anderson-like insulator with sharp mobility edges in a one-dimensional nearly-periodic…

其他凝聚态物理 · 物理学 2009-11-11 V. W. Scarola , S. Das Sarma

We propose a way of generating optical lattices embedded in photonic crystals. By setting up extended modes in photonic crystals, ultracold atoms can be mounted in different types of field intensity distributions. This novel way of…

量子气体 · 物理学 2009-11-30 Angela M. Barragan , Ian Mondragon-Shem , Herbert Vinck-Posada