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Relevant bibliographies by topics / Magneto-optical traps; Cold atom traps

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Academic literature on the topic 'Magneto-optical traps; Cold atom traps'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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Journal articles on the topic "Magneto-optical traps; Cold atom traps"

1

Grabowski, A., and T. Pfau. "A lattice of magneto-optical and magnetic traps for cold atoms." European Physical Journal D 22, no. 3 (March 2003): 347–54. http://dx.doi.org/10.1140/epjd/e2003-00047-3.

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Bober, M., J. Zachorowski, W. Gawlik, P. Morzyński, M. Zawada, D. Lisak, A. Cygan, et al. "Precision spectroscopy of cold strontium atoms, towards optical atomic clock." Bulletin of the Polish Academy of Sciences: Technical Sciences 60, no. 4 (December 1, 2012): 707–10. http://dx.doi.org/10.2478/v10175-012-0082-x.

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Abstract This report concerns the experiment of precision spectroscopy of cold strontium atoms in the Polish National Laboratory of Atomic, Molecular and Optical Physics in Toruń. The system is composed of a Zeeman slower and magneto-optical traps (at 461 nm and 689 nm), a frequency comb, and a narrow-band laser locked to an ultra-stable optical cavity. All parts of the experiment are prepared and the first measurements of the absolute frequency of the 1S0-3P1, 689 nm optical transition in 88Sr atoms are performed.

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Bagnato, V. S., N. P. Bigelow, L. G. Marcassa, and S. C. Zilio. "Observation of Double Stable Clouds of Cold Atoms in Magneto-Optical Traps." Japanese Journal of Applied Physics 35, Part 1, No. 9A (September 15, 1996): 4664–67. http://dx.doi.org/10.1143/jjap.35.4664.

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4

Band, Y. B., and P. S. Julienne. "Optical-Bloch-equation method for cold-atom collisions: Cs loss from optical traps." Physical Review A 46, no. 1 (July 1, 1992): 330–43. http://dx.doi.org/10.1103/physreva.46.330.

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DE OLIVEIRA, M. C., and B. R. DA CUNHA. "COLLISION-DEPENDENT ATOM TUNNELING RATE — BOSE–EINSTEIN CONDENSATES IN DOUBLE AND MULTIPLE WELL TRAPS." International Journal of Modern Physics B 23, no. 32 (December 30, 2009): 5867–80. http://dx.doi.org/10.1142/s0217979209054818.

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The overlap of localized wave functions in a two-mode approximation leads to interaction (cross-collision) between ultra-cold atoms trapped in distinct sites of a double-well potential. We show that this interaction can significantly change the atom tunneling rate for special trap configurations resulting in an effective linear Rabi regime of population oscillation between the trap wells. In this sense, we demonstrate that cross-collisional effects can significantly extend the validity of the two-mode model approach allowing it to be alternatively employed to explain the recently observed increase of tunneling rates due to nonlinear interactions. Moreover, we investigate the extension for ultra-cold atoms trapped in an optical lattice. Control over the cross-collisional terms, obtained through manipulation of the optical trapping potential, can be used as an engineering tool to study many-body physics.

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Yurovsky, V. A., and A. Ben-Reuven. "Incomplete optical shielding in cold atom traps: three-dimensional Landau-Zener theory." Physical Review A 55, no. 5 (May 1, 1997): 3772–79. http://dx.doi.org/10.1103/physreva.55.3772.

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Béguin, J. B., J. Laurat, X. Luan, A. P. Burgers, Z. Qin, and H. J. Kimble. "Reduced volume and reflection for bright optical tweezers with radial Laguerre–Gauss beams." Proceedings of the National Academy of Sciences 117, no. 42 (October 2, 2020): 26109–17. http://dx.doi.org/10.1073/pnas.2014017117.

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Spatially structured light has opened a wide range of opportunities for enhanced imaging as well as optical manipulation and particle confinement. Here, we show that phase-coherent illumination with superpositions of radial Laguerre–Gauss (LG) beams provides improved localization for bright optical tweezer traps, with narrowed radial and axial intensity distributions. Further, the Gouy phase shifts for sums of tightly focused radial LG fields can be exploited for phase-contrast strategies at the wavelength scale. One example developed here is the suppression of interference fringes from reflection near nanodielectric surfaces, with the promise of improved cold-atom delivery and manipulation.

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Jessen, P. S., D. L. Haycock, G. Klose, G. A. Smith, I. H. Deutsch, and G. K. Brennen. "Quantum control and information processing in optical lattices." Quantum Information and Computation 1, Special (December 2001): 20–32. http://dx.doi.org/10.26421/qic1.s-5.

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Neutral atoms offer a promising platform for single- and many-body quantum control, as required for quantum information processing. This includes excellent isolation from the decohering influence of the environment, and the existence of well developed techniques for atom trapping and coherent manipulation. We present a review of our work to implement quantum control and measurement for ultra-cold atoms in far-off-resonance optical lattice traps. In recent experiments we have demonstrated coherent behavior of mesoscopic atomic spinor wavepackets in optical double-well potentials, and carried out quantum state tomography to reconstruct the full density matrix for the atomic spin degrees of freedom. This model system shares a number of important features with proposals to implement quantum logic and quantum computing in optical lattices. We present a theoretical analysis of a protocol for universal quantum logic via single qubit operations and an entangling gate based on electric dipole-dipole interactions. Detailed calculations including the full atomic hyperfine structure suggests that high-fidelity quantum gates are possible under realistic experimental conditions.

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Pollock, S., J. P. Cotter, A. Laliotis, F. Ramirez-Martinez, and E. A. Hinds. "Characteristics of integrated magneto-optical traps for atom chips." New Journal of Physics 13, no. 4 (April 19, 2011): 043029. http://dx.doi.org/10.1088/1367-2630/13/4/043029.

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Eriksson, S., F. Ramirez-Martinez, E. A. Curtis, B. E. Sauer, P. W. Nutter, E. W. Hill, and E. A. Hinds. "Micron-sized atom traps made from magneto-optical thin films." Applied Physics B 79, no. 7 (September 29, 2004): 811–16. http://dx.doi.org/10.1007/s00340-004-1655-7.

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Dissertations / Theses on the topic "Magneto-optical traps; Cold atom traps"

1

Cooper, Catherine J. "Laser cooling and trapping of atoms." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308685.

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Ivanov, Vladyslav Victorovych. "Cold atoms modified radiative properties and evaporative cooling from optical traps /." [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2007. http://dare.uva.nl/document/47332.

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Bruce, Graham D. "Alternative techniques for the production and manipulation of ultracold atoms." Thesis, University of St Andrews, 2012. http://hdl.handle.net/10023/2617.

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This Thesis contains details of the construction and characterisation of a compact apparatus for the cooling of ultracold atoms to quantum degeneracy, and their manipulation in flexible holographic optical traps. We have designed and built two iterations of this apparatus. The first version consists of a stainless steel single-cell vacuum chamber, in which we confine ⁸⁷Rb and ⁶Li or ⁷Li in a Magneto-Optical Trap. We characterise the alternative methods of pulsed atomic dispenser and Light Induced Atomic Desorption (LIAD) to rapidly vary the background pressure in the vacuum chamber with the view to enabling efficient evaporative cooling in the single chamber, loading MOTs of up to 10⁸ atoms using pulsed dispensers. The LIAD is found to be ineffective in loading large MOTs in this setup, while the pulsed dispensers method gradually increases the background pressure in the chamber over time. Based on the results of this first iteration, we designed and built a second single-chamber apparatus for cooling of ⁸⁷Rb to quantum degeneracy. The LIAD technique was used to successfully load MOTs containing 8x10⁷ atoms in this single pyrex cell with a rapidly-varying background pressure. The lifetime of an atomic cloud loaded from the MOT into a magnetic trap increased by a factor of 6 when LIAD was used. The holographic optical traps for cold atoms are generated using a Spatial Light Modulator, and we present our novel method for improving the quality of holographic light patterns to the point where they are suitable for trapping ultracold atoms using a feedback algorithm. As demonstrations of this new capability, we show power-law optical traps which provide an efficient, reversible route to Bose-Einstein Condensation and a dynamic ring trap for the investigation of superfluidity in cold atoms.

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Clements, Ethan Robert. "CHARACTERIZATION OF OPTICAL LATTICES USING PUMP-PROBESPECTROSCOPY AND FLUORESCENCE IMAGING." Miami University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1470323164.

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Pollock, Samuel. "Integrated magneto-optical traps for atom chips." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/11271.

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Muckley, Eric S. "Constructing a magneto-optical trap for cold atom trapping /." Click here to view, 2009. http://digitalcommons.calpoly.edu/physsp/2.

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Thesis (B.S.)--California Polytechnic State University, 2009.
Project advisor: Katharina Gillen. Title from PDF title page; viewed on Jan. 14, 2010. Includes bibliographical references. Also available on microfiche.

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Van, Dongen Janelle. "Simultaneous cooling and trapping of 6Li and 85/87Rb." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/351.

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This thesis provides a summary of the laser system constructed in the Quantum Degenerate Gases Laboratory for laser cooling and trapping of 85/87Rband 6Li as well as of experiments that have been pursued in our lab to date. The first chapter provides an overview of the experimental focus of the QDG lab. The second and third chapters provide the fundamental theory behind laser cooling and trapping. The fourth chapter provides details of the laser system. The fifth chapter describes an experiment performed on the subject of dual-injection, performed in collaboration with Dr. James Booth of the British Columbia Institute of Technology (BCIT) involving the dual-injection of a single slave amplifier. The last chapter describes the progress made on the experimental setup needed for the study of Feshbach resonances between 85/87Rb and 6Li and the photoassociative formation of molecules.

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Ladouceur, Keith. "Experimental advances toward a compact dual-species laser cooling apparatus." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/2508.

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This thesis describes the advances made towards a dual-species magneto-optical trap (MOT) of Li and Rb for use in photoassociation spectroscopy, Feshbach resonance studies, and, as long-term aspirations, the formation of ultracold heteronuclear polar molecules. The initial discussion will focus on a brief theoretical overview of laser cooling and trapping and the production of ultracold molecules from a cold atom source. Subsequently, details of the experimental system, including those pertaining to the required laser light, the vacuum chamber, and the computer control system will be presented. Finally, preliminary optimization and characterization measurements showing the performance of a single species Li MOT are introduced. These measurements demonstrated the loading of over 8 x 107 Li atoms directly into a MOT without the need for a Zeeman slower.

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Morsch, Oliver. "Optical lattices for ultra-cold atoms." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301174.

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Deb, Amita. "Theoretical and experimental studies on ultra-cold atoms in optical traps." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.600174.

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This thesis describes a number of theoretical and experimental studies on the production, manipulation and detection of ultra-cold atoms in arrays of optical traps, i. e. optical lattices for applications such as direct quantum simulation of many-body systems and quantum information processing. A method of deterministically preparing a single atom in each site of an optical lattice is explored and the parameter regime that would be required to implement this protocol in experiments is investigated. A novel method of state-selective spatial transfer of atoms between neighbouring sites of a lattice using an intermediate trap is reported and the experimental parameters worked out. The theory of off-resonant light scattering from atoms in an optical lattice is explored. The possibility of using the far- field intensity distribution and t he frequency spectrum of the light scattered from atoms in an optical lattice for performing thermometry of atoms and for identifying quantum fluctuations in the system are investigated for cases of non-interacting fermions and weakly-interacting bosons. A spatial filtering method for detecting a small number of classical defects in an optical lattice is investigated. Experiments on trapping and manipulating Bose-Einstein condensates (BEC) of 8 1Rb atoms in dynamically configurable t raps created using spatial light modulators are discussed. The construction of a new magnetic trap for trapping and magnetically transporting atoms and the experimental stages subsequently leading to the production of BECs are reported.

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Book chapters on the topic "Magneto-optical traps; Cold atom traps"

1

Friedman, Nir, Ariel Kaplan, and Nir Davidson. "Dark Optical Traps for Cold Atoms." In Advances In Atomic, Molecular, and Optical Physics, 99–151. Elsevier, 2002. http://dx.doi.org/10.1016/s1049-250x(02)80007-6.

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Barkai, Eli, and David A. Kessler. "Transport and the First Passage Time Problem with Application to Cold Atoms in Optical Traps." In First-Passage Phenomena and Their Applications, 502–31. WORLD SCIENTIFIC, 2014. http://dx.doi.org/10.1142/9789814590297_0020.

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Conference papers on the topic "Magneto-optical traps; Cold atom traps"

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Yurovsky, Vladimir, and Abraham Ben-Reuven. "Incomplete optical shielding in cold sodium atom traps." In The 13th international conference on spectral line shapes. AIP, 1997. http://dx.doi.org/10.1063/1.51786.

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Grabowski, A., and T. Pfau. "A lattice of magneto-optical and magnetic traps for cold atoms." In 2003 European Quantum Electronics Conference. EQEC 2003 (IEEE Cat No.03TH8665). IEEE, 2003. http://dx.doi.org/10.1109/eqec.2003.1314131.

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3

Davidson, Nir. "Dark optical traps for ultra-cold atoms." In 19th Congress of the International Commission for Optics: Optics for the Quality of Life, edited by Giancarlo C. Righini and Anna Consortini. SPIE, 2003. http://dx.doi.org/10.1117/12.525477.

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4

Tempone-Wiltshire, S., S. Johnstone, P. Starkey, and K. Helmerson. "High efficiency holographic optical traps for cold atoms." In Frontiers in Optics. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/fio.2015.fth1c.7.

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Brzozowski, Tomasz M., Witold Chalupczak, Andrzej Noga, Maria Maczynska, Michal Zawada, Jerzy Zachorowski, Wojciech Gawlik, and Marian Smoluchowski. "Optical diagnostics of cold (T<1mK) atoms in the magneto-optical trap." In Laser Technology VII: Applications of Lasers, edited by Wieslaw L. Wolinski, Zdzislaw Jankiewicz, and Ryszard Romaniuk. SPIE, 2003. http://dx.doi.org/10.1117/12.520126.

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Fatemi, Fredrik K., Spencer E. Olson, Mark Bashkansky, Zachary Dutton, and Matthew Terraciano. "Single-beam, dark toroidal optical traps for cold atoms." In Integrated Optoelectronic Devices 2007, edited by David L. Andrews, Enrique J. Galvez, and Gerard Nienhuis. SPIE, 2007. http://dx.doi.org/10.1117/12.701078.

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Sereno, M., L. S. Cruz, F. C. Cruz, Niklaus Ursus Wetter, and Jaime Frejlich. "Deep Optical Trap for Cold Calcium Atoms." In RIAO∕OPTILAS 2007: 6th Ibero-American Conference on Optics (RIAO); 9th Latin-American Meeting on Optics, Lasers and Applications (OPTILAS). AIP, 2008. http://dx.doi.org/10.1063/1.2926902.

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Wojciechowski, A., K. Sycz, A. Stabrawa, M. Piotrowski, J. Zachorowski, and W. Gawlik. "Nonlinear magneto-optical effects and quantum coherences in cold rubidium atoms in an optical dipole trap." In 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC. IEEE, 2013. http://dx.doi.org/10.1109/cleoe-iqec.2013.6801785.

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McGilligan, J. P., K. R. Moore, R. Boudot, P. F. Griffin, A. S. Arnold, E. Riis, E. A. Donley, and J. Kitching. "Two-Photon Imaging of a Magneto-Optical Trap in a Micro-Fabricated Cell for Cold-Atom Sensors." In 2019 Joint Conference of the IEEE International Frequency Control Symposium anEuropean Frequency and Time Forum (EFTF/IFC). IEEE, 2019. http://dx.doi.org/10.1109/fcs.2019.8856083.

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Aucouturier, E. "The L.H.A. 2D magneto-optical trap: on the way to a continuous beam of cold atoms." In 10th International Conference on European Frequency and Time. IEE, 1996. http://dx.doi.org/10.1049/cp:19960051.

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