atoms trapped caesium

  • (PDF) Dipole Force Trapping of Caesium Atoms

    A novel dipole force trap was developed for trapping caesium atoms in the lower hyperfine level of the ground state and in preliminary experiments a cloud of #1000 atoms was trapped.

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  • Measurement of collisions between laser-cooled cesium ...

    Sep 08, 2020 · Measurement of collisions between laser-cooled cesium atoms and trapped cesium ions Sourav Dutta and S. A. Rangwala Phys. Rev. A 102, 033309 – Published 8 September 2020

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  • Measurement of collisions between laser cooled cesium ...

    Aug 19, 2020 · Measurement of collisions between laser cooled cesium atoms and trapped cesium ions. We report the measurement of collision rate coefficient for collisions between ultracold Cs atoms and low energy Cs+ ions. The experiments are performed in a hybrid trap consisting of a magneto-optical trap (MOT) for Cs atoms and a Paul trap for Cs+ ions.

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  • Trapping single atoms | Nature Photonics

    May 28, 2014 · This configuration allows caesium atoms to be trapped in the waveguide gap by using a dielectric-band blue-detuned from the D1 line as a trapping

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  • Scientists Just Achieved The World's Most Precise Chemical ...

    Apr 13, 2018 · 13 APRIL 2018. Scientists have just performed the world's most precisely controlled chemical reaction, sticking together just two atoms from elements that wouldn't normally form a molecule. The two elements - sodium and caesium - produced an interesting alloy-like molecule. On top of that, this method of creation could set the way of making ...

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  • Experiments with Optically and Magnetically Trapped Cesium ...

    Up to 10^8 atoms are trapped to a density of 3 times 10^{10} atoms/cm ^3, and can be cooled to under 5 muK. As an example of the uses of trapped and cooled atoms, spectroscopy of the cesium "clock" transition is performed on optically trapped and cooled cesium atoms, yielding excellent fractional frequency resolution.

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  • New type of atomic clock keeps time even more precisely ...

    Dec 16, 2020 · Atoms are trapped in an optical cavity composed of two mirrors. When a “squeezing” laser is set through the cavity, the atoms are entangled, and their frequency is measured with a second laser, as a platform for more precise atomic clocks. ... Furthermore, one cesium atom will oscillate at exactly the same frequency as another cesium atom ...

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  • Physics - Zooming in on Ultracold Matter

    Apr 01, 2019 · Cesium atoms (blue shaded areas) are trapped at the sites of an optical lattice. An overlapping standing wave created by lasers (dashed line), displaced by Δ x with respect to the trapping lattice, excites most atoms within each lattice site, while leaving a narrow window in which the fraction of excited atoms is zero.

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  • Atomic clocks use quantum timekeeping : Nature News

    Mar 31, 2010 · Treutlein's group manipulated BEC atoms trapped on an 'atom chip', fabricated from gold wires and housing a rudimentary atomic clock. ... squeezed down the

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  • (PDF) Dipole Force Trapping of Caesium Atoms

    A novel dipole force trap was developed for trapping caesium atoms in the lower hyperfine level of the ground state and in preliminary experiments a cloud of #1000 atoms was trapped.

    Chat Online
  • Measurement of collisions between laser-cooled cesium ...

    Sep 08, 2020 · Measurement of collisions between laser-cooled cesium atoms and trapped cesium ions Sourav Dutta and S. A. Rangwala Phys. Rev. A 102, 033309 – Published 8 September 2020

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  • Measurement of collisions between laser cooled cesium ...

    Aug 19, 2020 · Measurement of collisions between laser cooled cesium atoms and trapped cesium ions. We report the measurement of collision rate coefficient for collisions between ultracold Cs atoms and low energy Cs+ ions. The experiments are performed in a hybrid trap consisting of a magneto-optical trap (MOT) for Cs atoms and a Paul trap for Cs+ ions.

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  • The atom-cavity microscope: single atoms bound in orbit by ...

    The motion of individual cesium atoms trapped inside an optical resonator is revealed with the atom-cavity microscope (ACM). A single atom moving within the resonator generates large variations in the transmission of a weak probe laser, which are recorded in real time. An inversion algorithm then al

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  • Trapping single atoms | Nature Photonics

    May 28, 2014 · This configuration allows caesium atoms to be trapped in the waveguide gap by using a dielectric-band blue-detuned from the D1 line as a trapping

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  • Experiments with Optically and Magnetically Trapped Cesium ...

    Up to 10^8 atoms are trapped to a density of 3 times 10^{10} atoms/cm ^3, and can be cooled to under 5 muK. As an example of the uses of trapped and cooled atoms, spectroscopy of the cesium "clock" transition is performed on optically trapped and cooled cesium atoms, yielding excellent fractional frequency resolution.

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  • New type of atomic clock keeps time even more precisely ...

    Dec 16, 2020 · Atoms are trapped in an optical cavity composed of two mirrors. When a “squeezing” laser is set through the cavity, the atoms are entangled, and their frequency is measured with a second laser, as a platform for more precise atomic clocks. ... Furthermore, one cesium atom will oscillate at exactly the same frequency as another cesium atom ...

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  • Physics - Counting Atoms without Disturbance

    Dec 30, 2014 · The researchers trapped cesium atoms and then sent through the fiber two probe beams, whose frequencies were tuned slightly to the red and the blue of a particular cesium transition. Interactions with the atoms cause the red-shifted probe to travel more slowly than the blue-shifted one, and this difference signal reveals the number of atoms.

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  • ATI : QME : Caesium Interferometer

    A compact experiment will help us to achieve the appropriate control: The setup is based on a ColdQuanta RuBECi system with a double-chamber glass cell, where the Caesium atoms can be trapped and cooled in a magneto optic trap (MOT). Magnetic fields are generated by permanent magnets, coils and current carrying wires on a so-called atomchip.

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  • CiteSeerX — Dipole Force Trapping of Caesium Atoms

    CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): . A novel dipole force trap was developed for trapping caesium atoms in the lower hyperfine level of the ground state and in preliminary experiments a cloud of #1000 atoms was trapped. The viability of the trap is discussed, including suggestions for amendments to the trap design and problems that might occur which ...

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  • WUDSSHGDWRPV

    The atoms are trapped in two parallel one dimensional (1D) optical lattices generated by suitable far blue ... The system was realized recently for cesium atoms interacting with a multicolor evanescent field surrounding an optical nanofiber [23], where the atoms are

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  • Line shapes of cascade two-photon transitions in a cesium ...

    trapped cesium atoms, which are excited to the 6P 3/2 state by the absorption of the cooling and trapping laser. A probe laser, tuned to the 6P 3/2! 9S 1/2 transition at 658.8 nm, is sent through the trapped atoms, creating a doubly resonant two-photon transition (Fig. 1). The probe field is weak and nonperturbing and completely

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  • The Atom-Sorting Machine - news.softpedia

    They next set the conveyor belt moving - and with it the caesium atoms 'trapped' in the troughs. In this way they transported the wrongly placed atoms to their 'laser tweezers' - this is basically ...

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  • Characterizing optical dipole trap via fluorescence of ...

    Optical dipole trap (ODT) is becoming an important tool of manipulating neutral atoms. In this paper ODT is realized with a far-off resonant laser beam strongly focused in the magneto-optical trap (MOT) of cesium atoms. The light shift is measured by simply monitoring the fluorescence of the atoms in the magneto-optical trap and the optical dipole trap simultaneously. The advantages of our ...

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  • (PDF) Dipole Force Trapping of Caesium Atoms

    A novel dipole force trap was developed for trapping caesium atoms in the lower hyperfine level of the ground state and in preliminary experiments a cloud of #1000 atoms was trapped.

    Chat Online
  • Degenerate Raman Sideband Cooling of Trapped Cesium Atoms ...

    DOI: 10.1103/PHYSREVLETT.81.5768 Corpus ID: 6049069. Degenerate Raman Sideband Cooling of Trapped Cesium Atoms at Very High Atomic Densities @article{Vuleti1998DegenerateRS, title={Degenerate Raman Sideband Cooling of Trapped Cesium Atoms at Very High Atomic Densities}, author={V. Vuleti{\'c} and C. Chin and A. Kerman and S. Chu}, journal={Physical Review Letters},

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  • CiteSeerX — Dipole Force Trapping of Caesium Atoms

    CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): . A novel dipole force trap was developed for trapping caesium atoms in the lower hyperfine level of the ground state and in preliminary experiments a cloud of #1000 atoms was trapped. The viability of the trap is discussed, including suggestions for amendments to the trap design and problems that might occur which ...

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  • Coherence properties of nanofiber-trapped cesium atoms

    Feb 20, 2013 · Title: Coherence properties of nanofiber-trapped cesium atoms Authors: D. Reitz , C. Sayrin , R. Mitsch , P. Schneeweiss , A. Rauschenbeutel (Submitted on 20 Feb 2013 ( v1 ), last revised 28 Mar 2013 (this version, v2))

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  • Publications - Trapped Atoms as Qubits

    We present an apparatus for generating a multi-frequency laser field to coherently couple the F=3 and F=4 ground state of trapped cesium atoms through Raman transitions. We use a single frequency diode laser and generate sidebands by means of a 9.2 GHz electro-optic modulator.

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  • Quantum state manipulation of single-Cesium-atom qubit in ...

    Aug 04, 2014 · Based on single Cesium atoms trapped in a 1064 nm microscopic optical trap we have exhibited a single qubit encoded in the Cesium “clock states”. The single qubit initialization, detection and the fast state rotation with high efficiencies are demonstrated and this state manipulation is crucial for quantum information processing. The ground states Rabi flopping rate of 229.0 ± 0.6 kHz is ...

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  • Very long storage times and evaporative cooling of cesium ...

    Aug 15, 2000 · We have trapped cesium atoms over many minutes in the focus of a ${\mathrm{CO}}_{2}$-laser beam employing an extremely simple laser system. Collisional properties of the unpolarized atoms in their electronic ground state are investigated. Inelastic binary collisions changing the hyperfine state lead to trap loss, which is quantitatively analyzed.

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  • Realizing distance-selective interactions in a Rydberg ...

    Here we demonstrate a strong and tunable Rydberg-dressed interaction between spins of individually trapped caesium atoms with energy shifts of order 1 MHz in units of Planck’s constant. This ...

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  • Bose-Einstein Condensation of Cesium

    After 10 s, 2 × 10 6 atoms remain trapped at a temperature of ∼1 μK and a phase-space density of about 10 −3. Figure 1 Illustration of the three stages of evaporative cooling toward BEC of Cs. ( A ) Ten seconds of plain evaporation in two crossed CO 2 laser beams at a magnetic bias field of 75 G (scattering length tuned to 1200 a 0 ).

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  • WUDSSHGDWRPV

    The atoms are trapped in two parallel one dimensional (1D) optical lattices generated by suitable far blue ... The system was realized recently for cesium atoms interacting with a multicolor evanescent field surrounding an optical nanofiber [23], where the atoms are

    Chat Online
  • The atom-cavity microscope: single atoms bound in orbit by ...

    The motion of individual cesium atoms trapped inside an optical resonator is revealed with the atom-cavity microscope (ACM). A single atom moving within the resonator generates large variations in the transmission of a weak probe laser, which are recorded in real time. An inversion algorithm then al

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  • Sub-Wavelength Resonance Imaging and Addressing of Cesium ...

    By employing these new techniques for sub-wavelength imaging, we tested the effectiveness of using composite pulses for addressing the trapped atoms in an optical lattice. Composite pulse techniques can be used to reduce the sensitivity of the addressing to small variations in

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  • State-Insensitive Cooling and Trapping of Single Atoms in ...

    Apr 03, 2003 · Single cesium atoms are cooled and trapped inside a small optical cavity by way of a novel far-off-resonance dipole-force trap, with observed lifetimes of 2 – 3 s.Trapped atoms are observed continuously via transmission of a strongly coupled probe beam, with individual events lasting ≃ 1 s.The loss of successive atoms from the trap N ≥ 3 → 2 → 1 → 0 is thereby monitored in real time.

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  • Caesium - Element information, properties and uses ...

    Caesium is a soft, gold-coloured metal that is quickly attacked by air and reacts explosively in water. Uses. The most common use for caesium compounds is as a drilling fluid. They are also used to make special optical glass, as a catalyst promoter, in vacuum tubes and in radiation monitoring equipment.

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