Relevant bibliographies by topics / Magnetic microtraps

Academic literature on the topic 'Magnetic microtraps'

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Published: 4 June 2021
Last updated: 19 February 2022

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Journal articles on the topic "Magnetic microtraps"

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HERRERA, IVAN, GIUSEPPE D'ARRIGO, MARIO SICILIANI DE CUMIS, and FRANCESCO SAVERIO CATALIOTTI. "MAGNETIC MICROTRAPS FOR QUANTUM CONTROL." International Journal of Quantum Information 05, no. 01n02 (February 2007): 23–31. http://dx.doi.org/10.1142/s0219749907002487.

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We will review the realization of magnetic microtraps for ultracold atoms. Such devices combine experimental simplicity with unsurpassed versatility in designing confining potentials. We will show how combining magnetic microtraps with optical lattices one can realize many possible quantum systems of interest in many fields ranging from solid state physics to condensed matter. We will also illustrate new possibilities in the quantum simulation of different physical systems.
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Fortágh, József, and Claus Zimmermann. "Magnetic microtraps for ultracold atoms." Reviews of Modern Physics 79, no. 1 (February 1, 2007): 235–89. http://dx.doi.org/10.1103/revmodphys.79.235.

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Reichel, J., W. Hänsel, P. Hommelhoff, and T. W. Hänsch. "Applications of integrated magnetic microtraps." Applied Physics B 72, no. 1 (January 2001): 81–89. http://dx.doi.org/10.1007/s003400000460.

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Tran, Tien Duy, Yibo Wang, Alex Glaetzle, Shannon Whitlock, Andrei Sidorov, and Peter Hannaford. "Magnetic Lattices for Ultracold Atoms." Communications in Physics 29, no. 2 (May 14, 2019): 97. http://dx.doi.org/10.15625/0868-3166/29/2/13678.

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This article reviews the development in our laboratory of magnetic lattices comprising periodic arrays of magnetic microtraps created by patterned magnetic films to trap periodic arrays of ultracold atoms. Recent achievements include the realisation of multiple Bose-Einstein condensates in a 10 \(\mu\)m-period one-dimensional magnetic lattice; the fabrication of sub-micron-period square and triangular magnetic lattice structures suitable for quantum tunnelling experiments; the trapping of ultracold atoms in a sub-micron-period triangular magnetic lattice; and a proposal to use long-range interacting Rydberg atoms to achieve spin-spin interactions between sites in a large-spacing magnetic lattice.
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Treutlein, P., T. Steinmetz, Y. Colombe, B. Lev, P. Hommelhoff, J. Reichel, M. Greiner, et al. "Quantum information processing in optical lattices and magnetic microtraps." Fortschritte der Physik 54, no. 8-10 (August 23, 2006): 702–18. http://dx.doi.org/10.1002/prop.200610325.

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Jian-Jun, Hu, and Yin Jian-Ping. "Magnetic Surface Microtraps for Two-Species Bose-Einstein Condensations." Chinese Physics Letters 19, no. 6 (May 28, 2002): 782–85. http://dx.doi.org/10.1088/0256-307x/19/6/312.

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Mabuchi, H., M. Armen, B. Lev, M. Loncar, J. Vuckovic, H. J. Kimble, J. Preskill, M. Roukes, A. Scherer, and S. J. van Enk. "Quantum networks based on cavity QED." Quantum Information and Computation 1, Special (December 2001): 7–12. http://dx.doi.org/10.26421/qic1.s-3.

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We review an ongoing program of interdisciplinary research aimed at developing hardware and protocols for quantum communication networks. Our primary experimental goals are to demonstrate quantum state mapping from storage/processing media (internal states of trapped atoms) to transmission media (optical photons), and to investigate a nanotechnology paradigm for cavity QED that would involve the integration of magnetic microtraps with photonic bandgap structures.
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Andersson, Erika, and Stig Stenholm. "Quantum logic gate with microtraps." Optics Communications 188, no. 1-4 (February 2001): 141–48. http://dx.doi.org/10.1016/s0030-4018(00)01161-5.

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Singh, M., M. Volk, A. Akulshin, A. Sidorov, R. McLean, and P. Hannaford. "One-dimensional lattice of permanent magnetic microtraps for ultracold atoms on an atom chip." Journal of Physics B: Atomic, Molecular and Optical Physics 41, no. 6 (March 10, 2008): 065301. http://dx.doi.org/10.1088/0953-4075/41/6/065301.

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Lesanovsky, I., and P. Schmelcher. "Selected aspects of the quantum dynamics and electronic structure of atoms in magnetic microtraps." European Physical Journal D 35, no. 1 (May 3, 2005): 31–42. http://dx.doi.org/10.1140/epjd/e2005-00062-4.

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Dissertations / Theses on the topic "Magnetic microtraps"

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Whitlock, Shannon, and n/a. "Bose-Einstein condensates on a magnetic film atom chip." Swinburne University of Technology, 2007. http://adt.lib.swin.edu.au./public/adt-VSWT20070613.172308.

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Atom chips are devices used to magnetically trap and manipulate ultracold atoms and Bose-Einstein condensates near a surface. In particular, permanent magnetic film atom chips can allow very tight confinement and intricate magnetic field designs while circumventing technical current noise. Research described in this thesis is focused on the development of a magnetic film atom chip, the production of Bose-Einstein condensates near the film surface, the characterisation of the associated magnetic potentials using rf spectroscopy of ultracold atoms and the realisation of a precision sensor based on splitting Bose-Einstein condensates in a double-well potential. The atom chip itself combines the edge of a perpendicularly magnetised GdTbFeCo film with a machined silver wire structure. A mirror magneto-optical trap collects up to 5 x 108 87Rb atoms beneath the chip surface. The current-carrying wires are then used to transfer the cloud of atoms to the magnetic film microtrap and radio frequency evaporative cooling is applied to produce Bose-Einstein condensates consisting of 1 x 105 atoms. We have identified small spatial magnetic field variations near the film surface that fragment the ultracold atom cloud. These variations originate from inhomogeneity in the film magnetisation and are characterised using a novel technique based on spatially resolved radio frequency spectroscopy of the atoms to map the magnetic field landscape over a large area. The observations agree with an analytic model for the spatial decay of random magnetic fields from the film surface. Bose-Einstein condensates in our unique potential landscape have been used as a precision sensor for potential gradients. We transfer the atoms to the central region of the chip which produces a double-well potential. A single BEC is formed far from the surface and is then dynamically split in two by moving the trap closer to the surface. After splitting, the population of atoms in each well is extremely sensitive to the asymmetry of the potential and can be used to sense tiny magnetic field gradients or changes in gravity on a small spatial scale.
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Rigla, Pérez Juan Pablo. "Design and characterization of magnetic systems in race-track microtrons." Doctoral thesis, Universitat Politècnica de Catalunya, 2013. http://hdl.handle.net/10803/128671.

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During last four or five decades there has been a growing demand in particle accelerators which can provide electron beams in the energy ranging from 2 MeV to 100 MeV with high energy resolution and good dose control. Other important requirements are that the machines must be compact, of low power consumption, low price and relatively low maintenance cost. There is a variety of sectors interested in such particle accelerators ranging from industry (industrial radiography) to nuclear physics experiments. One type of machines that meet all these requirements are the electron accelerators with beam recirculation. Fair representatives of this class of accelerators are race-track microtrons (RTM). These sources of electron beam are the most efficient equipment for applications with a relatively low beam current and medium energies ranging from 2 MeV to 100 MeV. The aim of the present thesis is to perform studies of some aspects of the RTMs. One part of the thesis is devoted to the design and development of magnetic elements with permanent magnets of two RTMs for different applications. The first one, which is currently under construction at the UPC (Universidad Politécnica de Cataluña), is a novel accelerator with the beam energy variable between 6 MeV and 12 MeV for medical applications (Intraoperative Radiation Therapy treatments). The other machine is a 55 MeV RTM for the detection of explosives by means of photonuclear reactions, which is at the stage of tests at the Skobeltsyn Institute of Nuclear Physics (SINP). The magnetic field in the designed magnets is generated by rare earth permanent magnet (REPM) materials. This allows to get quite compact magnetic systems compatible with high vacuum environment. In the thesis the design and magnetic properties characterization of the magnetic system of these RTMs are carried out. The calculations were performed by means of 2D and 3D simulations using the POISSON, FEMM and ANSYS codes. In the case of the UPC RTM the design of the 180º dipoles, extraction magnets and quadrupole magnet are carried out. For the SINP 55 MeV RTM the optimization of the magnetic field shielding with the aim to reduce the stray magnetic field generated by the extraction magnet is presented. The results of the simulations were confirmed by experimental measurements of the magnetic field of the magnet with the optimized magnetic field shielding. In the other part of the thesis some aspects of the beam dynamics in RTM magnetic systems are studied. A detailed analysis of the fringe - field focusing in RTM dipole magnets is carried out. Equations for calculation of the fringe - field effect on electron beam trajectories are derived and are applied for a study of the end magnets of the UPC 12 MeV RTM. A general formalism for describing the longitudinal beam dynamics in RTMs for electron beams with arbitrary energy and end magnets with arbitrary magnetic field profile is also developed. This formalism is used for the calculation of the phase-slip effect in RTMs with low energy injection.
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TAKAHASHI, JIRO. "Projeto e construcao de uma estrutura aceleradora de eletrons de onda continua." reponame:Repositório Institucional do IPEN, 1997. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10641.

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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Lev, Benjamin Leonard. "Magnetic microtraps for cavity QED, Bose-Einstein condensates, and atom optics." Thesis, 2006. https://thesis.library.caltech.edu/3658/1/Lev_Thesis.pdf.

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The system comprised of an atom strongly coupled to photons, known as cavity quantum electrodynamics (QED), provides a rich experimental setting for quantum information processing, both in the implementation of quantum logic gates and in the development of quantum networks. Moreover, studies of cavity QED will help elucidate the dynamics of continuously observed open quantum systems with quantum-limited feedback. To achieve these goals in cavity QED, a neutral atom must be tightly confined inside a high-finesse cavity with small mode volume for long periods of time. Microfabricated wires on a substrate---known as an atom chip---can create a sufficiently high-curvature magnetic potential to trap atoms in the Lamb-Dicke regime. We have recently integrated an optical fiber Fabry-Perot cavity with such a device. The microwires allow the on-chip collection and laser cooling of neutral atoms, and allow the magnetic waveguiding of these atoms to an Ioffe trap inside the cavity mode. Magnetically trapped intracavity atoms have been detected with this cavity QED system. A similar experiment employing microdisks and photonic bandgap cavities is nearing completion. With these more exotic cavities, a robust and scalable atom-cavity chip system will deeply probe the strong coupling regime of cavity QED with magnetically trapped atoms. Atom chips have found great success in producing and manipulating Bose-Einstein condensates and in creating novel atom optical elements. An on-chip BEC has been attained in a miniaturized system incorporating an atom chip designed for atom interferometry and for studies of Josephson effects of a BEC in a double-well potential. Using similar microfabrication techniques, we created and demonstrated a specular magnetic atom mirror formed from a standard computer hard drive. This device, in conjunction with micron-sized charged circular pads, can produce a 1-D ring trap which may prove useful for studying Tonks gases in a ring geometry and for creating devices such as a SQUID-like system for neutral atoms. This thesis describes the fabrication and employment of these atoms chips in experiments at both Caltech and Munich, the latter in collaboration with Professors Theodore Haensch and Jakob Reichel at the Max Planck Institute for Quantum Optics.
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Conference papers on the topic "Magnetic microtraps"

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Ningjia Zhu, Jing Zhang, M. Lederman, A. Rana, and Wenjie Chen. "Current distribution effect on microtrack proftles in spin valve devices." In IEEE International Magnetics Conference. IEEE, 1999. http://dx.doi.org/10.1109/intmag.1999.838014.

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Goldberg, J. S., and J. K. Wolf. "Implementation and analysis of nonlinear effects in the microtrack model." In IEEE International Magnetics Conference. IEEE, 1999. http://dx.doi.org/10.1109/intmag.1999.837407.

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Pichler, Marin, Shannon B. Hill, and Jabez J. McClelland. "A chromium surface magneto-optical trap for magnetic microtrap studies." In International Quantum Electronics Conference. Washington, D.C.: OSA, 2004. http://dx.doi.org/10.1364/iqec.2004.itui25.

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Leung, V. Y. F., A. Tauschinsky, N. J. van Druten, and R. J. C. Spreeuw. "Microtrap arrays on magnetic film atom chips for quantum information science." In Quantum Information and Measurement. Washington, D.C.: OSA, 2012. http://dx.doi.org/10.1364/qim.2012.qm2a.4.

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Tan, K., W. Wong, W. Ye, X. Zou, and C. Du. "Rapid Microtrack Modeling with Vibrations for Servo Perpendicular Recording in Hard Disk Drives." In INTERMAG 2006 - IEEE International Magnetics Conference. IEEE, 2006. http://dx.doi.org/10.1109/intmag.2006.376327.

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