Now showing items 21-40 of 91

    • Scalable Technologies for Quantum Computing with Trapped Atomic Ions 

      Brown, Kenton R. (Georgia Institute of Technology, 2012-09-17)
      From the earliest days of the field of quantum information, trapped atomic ions have had great potential as qubits. Trapped-ion experiments have separately demonstrated the individual ingredients believed necessary for ...
    • Physics of the Piano 

      Giordano, Nick (Georgia Institute of Technology, 2012-10-01)
      Why does a piano sound like a piano? A similar question can be asked of virtually all musical instruments. A particular note, such as middle C, can be produced by a piano, a violin, and a clarinet. Yet, it is easy for even ...
    • Topological Insulator Heterostructures: Searching for Exotic Particles on a Bench Top 

      Samarth, Nitin (Georgia Institute of Technology, 2012-10-08)
      A triumph of contemporary physics is the highly successful description of the most fundamental constituents of Nature and their excitations. Recent theories of “topological insulators” [1,2] have shown that in the complex ...
    • How Worms Wiggle 

      Samuel, Aravi (Georgia Institute of Technology, 2012-11-19)
      Directed locomotion requires coordinated motor activity throughout an animal’s body. The nematode C. elegans, with only 302 neurons, offers an opportunity to understand how locomotion is organized by an entire motor system. ...
    • From Social Intelligence of Bacteria to Cyber-war on Cancer 

      Ben-Jacob, Eshel (Georgia Institute of Technology, 2012-11-26)
      Cancer continues to elude us. Metastasis, relapse and drug resistance are all still poorly understood and clinically insuperable. Evidently, the prevailing paradigms need to be re-examined and out-of-the-box ideas ought ...
    • Ultra-high Energy Cosmic Rays from Blazars 

      Dermer, Charles (Georgia Institute of Technology, 2012-12-10)
      Blazar astronomy is rapidly progressing thanks in large part to the successes of the Fermi Gamma-ray Space Telescope and the ground-based gamma-ray telescopes. More than 1000 active galaxies have been detected at GeV ...
    • Using Growth and Folding to Shape Elastic Sheets 

      Santangelo, Chris (Georgia Institute of Technology, 2013-01-14)
      Despite their everyday familiarity, thin sheets (paper, plastic, fabric, etc.) display remarkable and complex behaviors that still challenge theoretical description. The intricate coupling between the geometry of surfaces ...
    • How Do Chipper, Kobe, Serena and Rory Do It? What Physics Has to Say About Achievements in Sports 

      Can, Cüneyt (Georgia Institute of Technology, 2013-01-28)
      A great part of physics deals with motion, and the essence of sports is the human body in motion. The components of the human body that produce motion, namely the skeletal muscles and bones, and the sports equipment itself ...
    • Consider the Icicle 

      Morris, Stephen (Georgia Institute of Technology, 2013-02-04)
      Icicles are harmless and picturesque winter phenomena, at least in cold climates. The shape of an icicle emerges from a subtle feedback between ice formation, which is controlled by the release of latent heat, and the flow ...
    • Computation with Quanta 

      Amini, Jason M. (Georgia Institute of Technology, 2013-02-11)
      A quantum processor, using quantum states of light and matter, holds the promise of performing calculations and simulations that are not practical by a classical processor. Many of the key components for a quantum processor ...
    • Fractionalized Quasi-Particles in Frustrated Quantum Magnets 

      Broholm, Collin (Georgia Institute of Technology, 2013-02-18)
      I present inelastic neutron scattering data from one- two- and three-dimensional insulating magnetic materials at low temperatures that do not display a coherent resonant mode of excitation. Instead, momentum resolved ...
    • Fate of the Kinetic Ising Model 

      Redner, Sidney (Georgia Institute of Technology, 2013-02-25)
      What could possibly be new in the Ising model, arguably the most-studied model of statistical physics? Plenty! Consider the Ising model initially at infinite temperature that is suddenly cooled to zero temperature and ...
    • A Discovery! The Higgs? Why it is important. How it was done 

      Gordon, Howard A. (Georgia Institute of Technology, 2013-03-04)
      The ATLAS Experiment at the Large Hadron Collider with its sister experiment CMS reported a discovery last summer of a new boson which is consistent with the Standard Model Higgs boson. The Higgs particle has been searched ...
    • What Happened Before the Big Bang? 

      Bojowald, Martin (Georgia Institute of Technology, 2013-04-08)
      The standard model of cosmology suggests that the universe started with a phase of very high density, described by general relativity as a singularity. Quantum gravity attempts to resolve the singularity by a more fundamental, ...
    • Was Mars Ever Habitable? 

      Wray, James (Georgia Institute of Technology, 2013-04-15)
      NASA has followed the water on Mars, and has now progressed further to asking: is or was this environment ever actually habitable by life as we know it? All such life has some common physical and chemical requirements, ...
    • The Astrophysics of Black Hole Spin 

      Reynolds , Chris (Georgia Institute of Technology, 2013-04-22)
      In addition to providing vital clues as to the formation and evolution of black holes, the spin of black holes may be an important energy source in the Universe. Over the past couple of years, tremendous progress has been ...
    • School of Physics Annual Chair's Address 

      Laguna, Pablo (Georgia Institute of Technology, 2013-08-26)
      Pablo Laguna, newly appointed chair of the School of Physics, spoke about his view of the field, the school and his plans for faculty, students and outreach.
    • Observation of Astrophysical Neutrinos by IceCube 

      Taboada, Ignacio (Georgia Institute of Technology, 2013-09-16)
      Even though cosmic rays were discovered more than 100 years ago, their origin remains a mystery. Neutrinos, product of cosmic ray interactions at or near the production site, are the best astrophysical messenger to find ...
    • Single-Atom Optical Clocks 

      Wineland, David J. (Georgia Institute of Technology, 2013-10-21)
      With the availability of spectrally pure lasers and the ability to precisely measure optical frequencies, it appears the era of optical atomic clocks has begun. At the expense of signal-to-noise ratio, in one project at ...
    • Testing Gravity via Lunar Laser Ranging 

      Murphy, Tom (Georgia Institute of Technology, 2013-11-11)
      Forty years ago, Apollo astronauts placed the first of several retroreflector arrays on the moon. Laser range measurements between the earth and the moon have provided some of our best tests to date of general relativity ...