Now showing items 1-15 of 15

    • Bound States of Guided Matter Waves: An Atom and a Charged Wire 

      Hau, Lene Vestergaard; Burns, Michael M.; Golovchenko, Jene A. (American Physical Society, 1992)
      We argue that it is possible to bind a neutral atom in stable orbits around a wire charged by a time-varying sinusoidal voltage. Both classical and quantum-mechanical theories for this system are discussed, and a unified ...
    • Coherent Control of Optical Information With Matter Wave Dynamics 

      Ginsberg, Naomi S.; Garner, Sean R.; Hau, Lene Vestergaard (Nature Publishing Group, 2007)
      In recent years, significant progress has been achieved in manipulating matter with light, and light with matter. Resonant laser fields interacting with cold, dense atom clouds provide a particularly rich system. Such light ...
    • Detection and Quantized Conductance of Neutral Atoms Near a Charged Carbon Nanotube 

      Ristroph, Trygve; Goodsell, Anne; Golovchenko, Jene Andrew; Hau, Lene V. (American Physical Society (APS), 2005)
      We describe a novel single atom detector that uses the high electric field surrounding a charged single-walled carbon nanotube to attract and subsequently field-ionize neutral atoms. A theoretical study of the field-ionization ...
    • Field Ionization of Cold Atoms Near the Wall of a Single Carbon Nanotube 

      Goodsell, Anne Laurel; Ristroph, Trygve; Golovchenko, Jene A.; Hau, Lene Vestergaard (American Physical Society, 2010)
      We observe the capture and field ionization of individual atoms near the side wall of a single suspended nanotube. Extremely large cross sections for ionization from an atomic beam are observed at modest voltages due to ...
    • An Investigation of the Interaction Between Graphene and Hydrated Ions 

      Dressen, Donald George (2016-05-17)
      The ability of graphene and carbon nanotubes to generate an electric potential from flowing fluids has attracted much interest. The effect is thought to occur because certain ionic and molecular species bind to the surface ...
    • Light Speed Reduction to 17 Metres per Second in an Ultracold Atomic Gas 

      Hau, Lene Vestergaard; Harris, S. E.; Dutton, Zachary; Behroozi, Cyrus H. (Nature Publishing Group, 1999)
      Techniques that use quantum interference effects are being attively investigated to manipulate the optical properties of quantum systems(1). One such example is electromagnetically induced transparency, a quantum effect ...
    • Near-Resonant Spatial Images of Confined Bose-Einstein Condensates in a 4-Dee Magnetic Bottle 

      Hau, Lene Vestergaard; Busch, B. D.; Liu, Chien; Dutton, Zachary; Burns, Michael M.; Golovchenko, Jene A. (American Physical Society, 1998)
      We present quantitative measurements of the spatial density profile of Bose-Einstein condensates of sodium atoms confined in a 4-Dee magnetic bottle. The condensates are imaged in transmission with near-resonant laser ...
    • Nonlinear Optics: Shocking Superfluids 

      Hau, Lene Vestergaard (Nature Publishing Group, 2007)
      How shock waves travel through a superfluid provides clues to understanding the deeper nature of Bose–Einstein condensation. An optical analogue that behaves as a pure superfluid could tell us what these clues mean.
    • Observation of Coherent Optical Information Storage in an Atomic Medium Using Halted Light Pulses 

      Liu, Chien; Dutton, Zachary; Behroozi, Cyrus H.; Hau, Lene Vestergaard (Nature Publishing Group, 2001)
      Electromagnetically induced transparency(1-3) is a quantum interference effect that permits the propagation of light through an otherwise opaque atomic medium; a 'coupling' laser is used to create the interference necessary ...
    • Observation of Quantum Shock Waves Created With Ultra-Compressed Slow Light Pulses in a Bose-Einstein Condensate 

      Dutton, Zachary; Budde, Michael; Slowe, Christopher; Hau, Lene Vestergaard (American Association for the Advancement of Science, 2001)
      We have used an extension of our slow light technique to provide a method for inducing small density defects in a Bose-Einstein condensate. These sub- resolution, micrometer-sized defects evolve into large-amplitude sound ...
    • Optical Information Processing in Bose-Einstein Condensates 

      Hau, Lene Vestergaard (Nature Publishing Group, 2008)
    • Quantum Channeling Effects for 1 MeV Positrons 

      Haakenaasen, R.; Hau, Lene V.; Golovchenko, Jene Andrew; Palathingal, J. C.; Peng, J. P.; Asoka-Kumar, P.; Lynn, K. G. (American Physical Society (APS), 1995)
      A high resolution angular study of positrons transmitted through a thin single crystal of Si clearly reveals a detailed fine structure due to strong quantum channeling effects. The beam transmitted in the forward direction ...
    • Supersymmetry and the Binding of a Magnetic Atom to a Filamentary Current 

      Hau, Lene Vestergaard; Golovchenko, Jene A.; Burns, Michael M. (American Physical Society, 1995)
      We suggest the binding of neutral atoms to a current carrying wire through the interaction between the atomic magnetic dipole moment and the wire's magnetic field. The theoretical description is based upon an extension ...
    • Ultraslow Light & Bose-Einstein Condensates: Two-way Control with Coherent Light & Atom Fields 

      Slowe, Christopher; Ginsberg, Naomi S.; Ristroph, Trygve; Goodsell, Anne Laurel; Hau, Lene Vestergaard (Optical Society of America, 2005)
      Ultraslow light has been used to form dramatic new nonlinear excitations in superfluid Bose-Einstein condensates of laser-cooled alkali atoms, and to create pulsed coherent matter waves. We describe these phenomena and a ...
    • Waveguide for cold atoms: Spin-1 magnetic particles and a filamentary current 

      Berg-Sorensen, Kirstine; Burns, Michael M.; Golovchenko, Jene Andrew; Hau, Lene V. (American Physical Society (APS), 1996)
      We consider a waveguide for cold neutral atoms with a magnetic moment proportional to their spin angular momentum. The waveguide consists of a thin wire carrying a constant current. For the spin-1 case, we find bound states ...