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We investigate quantum control of a single atom in an optical tweezer trap created by a tightly focused optical beam. We show that longitudinal polarization components in the dipole trap arising from the breakdown of the paraxial…

原子物理 · 物理学 2015-06-11 J. D. Thompson , T. G. Tiecke , A. S. Zibrov , V. Vuletić , M. D. Lukin

Generally, the conditions for deep sub-Doppler laser cooling do not match the conditions for the strong atomic localization that takes a place in deeper optical potential and, in consequence, leads to larger temperature. Moreover, for a…

原子物理 · 物理学 2022-01-17 O. N. Prudnikov , A. V. Taichenachev , A. M. Tumaikin , V. I. Yudin

Rydberg atomic sensors offer transformative potential for high-speed, high-sensitivity terahertz (THz) imaging. However, previous systems are hindered by restricted imaging areas, largely due to the compact dimension of atomic vapor cells…

Optical tweezers are a powerful tool for the precise positioning of a variety of small objects, including single neutral atoms. Once trapped, atoms can be cooled to the motional ground state of the tweezers. For a more advanced control of…

We demonstrate single-shot imaging and narrow-line cooling of individual alkaline earth atoms in optical tweezers; specifically, strontium-88 atoms trapped in $515.2~\text{nm}$ light. We achieve high-fidelity single-atom-resolved imaging by…

We present an experimental technique that enables the preparation of defect-free arrays of 87Rb atoms within a microscopic high-finesse optical standing-wave cavity. By employing optical tweezers, we demonstrate atom positioning with a…

量子物理 · 物理学 2025-02-20 Matthias Seubert , Lukas Hartung , Stephan Welte , Gerhard Rempe , Emanuele Distante

We present programmable two-dimensional arrays of microscopic atomic ensembles consisting of more than 400 sites with nearly uniform filling and small atom number fluctuations. Our approach involves direct projection of light patterns from…

原子物理 · 物理学 2021-05-19 Y. Wang , S. Shevate , T. M. Wintermantel , M. Morgado , G. Lochead , S. Whitlock

Optical tweezer arrays have transformed atomic and molecular physics, now forming the backbone for a range of leading experiments in quantum computing, simulation, and metrology. Typical experiments trap tens to hundreds of atomic qubits,…

量子物理 · 物理学 2025-11-13 Hannah J. Manetsch , Gyohei Nomura , Elie Bataille , Kon H. Leung , Xudong Lv , Manuel Endres

An atom in front of a surface is one of the simplest and fundamental problem in physics. Yet, it allows testing quantum electrodynamics, while providing potential platforms and interfaces for quantum technologies. Despite, its simplicity,…

原子物理 · 物理学 2021-11-16 Athanasios Laliotis , Bing-Sui Lu , Martial Ducloy , David Wilkowski

We propose a scheme for quantum logic with neutral atoms stored in an array of holographic dipole traps where the positions of the atoms can be rearranged by using holographic optical tweezers. In particular, this allows for the transport…

量子物理 · 物理学 2009-11-11 U. Dorner , T. Calarco , P. Zoller , A. Browaeys , P. Grangier

Atomic and molecular electric dipole moments are calculated within the minimal supersymmetric standard model. Present experiments already provide strong bounds on the combination of phases responsible for the dipole moments of the neutron…

高能物理 - 唯象学 · 物理学 2010-11-01 Willy Fischler , Sonia Paban , Scott Thomas

We demonstrate a set of tools for microscopic control of neutral strontium atoms. We report single-atom loading into an array of sub-wavelength scale optical tweezers, light-shift free control of a narrow-linewidth optical transition,…

原子物理 · 物理学 2019-01-02 M. A. Norcia , A. W. Young , A. M. Kaufman

Every massive particle behaves like a wave, according to quantum physics. Yet, this characteristic wave nature has only been observed in double-slit experiments with microscopic systems, such as atoms and molecules. The key aspect is that…

A general quantum limit to the sensitivity of particle position measurements is derived following the simple principle of the Heisenberg microscope. The value of this limit is calculated for particles in the Rayleigh and Mie scattering…

光学 · 物理学 2014-09-04 Michael A. Taylor , Joachim Knittel , Warwick P. Bowen

Microscopic control over polar molecules with tunable interactions would enable realization of novel quantum phenomena. Using an applied electric field gradient, we demonstrate layer-resolved state preparation and imaging of ultracold…

The preparation of large, low-entropy, highly coherent ensembles of identical quantum systems is foundational for many studies in quantum metrology, simulation, and information. Here, we realize these features by leveraging the favorable…

The limits of pushing storage density to the atomic scale are explored with a memory that stores a bit by the presence or absence of one silicon atom. These atoms are positioned at lattice sites along self-assembled tracks with a pitch of 5…

凝聚态物理 · 物理学 2009-11-07 R. Bennewitz , J. N. Crain , A. Kirakosian , J. -L. Lin , J. L. McChesney , D. Y. Petrovykh , F. J. Himpsel

We report a measurement of the dynamical polarizability of dysprosium atoms in their electronic ground state at the optical wavelength of 1064 nm, which is of particular interest for laser trapping experiments. Our method is based on…

原子物理 · 物理学 2018-06-07 C. Ravensbergen , V. Corre , E. Soave , M. Kreyer , S. Tzanova , E. Kirilov , R. Grimm

Active atomic clocks are predicted to provide far better short-term stability and robustness against thermal fluctuations than typical feedback-based optical atomic clocks. However, continuous laser operation using an ensemble of clock…

量子物理 · 物理学 2024-12-31 Anna Bychek , Laurin Ostermann , Helmut Ritsch

We propose novel quantum antennas and metamaterials with strong magnetic response at optical frequencies. Our design is based on the arrangement of natural atoms with only electric dipole transition moments at distances smaller than a…