Now showing items 236-255 of 515

    • K-Star rapid rotators and the detection of relatively young multiple K-Star systems 

      Joss, Matthew Albert Henry (Massachusetts Institute of Technology, 2014)
      In this thesis, I searched through the Kepler light curves of 14,440 K-star targets for evidence of periodicities that indicate rapid stellar rotation. Many Kepler M, K, and G stars show modulations in flux due to rotating ...
    • The L- to H-mode transition and momentum confinement in Alcator C-Mod plasmas 

      Walk, John Reel, Jr (Massachusetts Institute of Technology, 2010)
      Using a spatially-resolving x-ray spectrometer system, toroidal impurity rotation in Alcator C-Mod plasmas was measured. The propagation of the rotational velocity from the edge to the core of the plasma column was measured ...
    • The lamb shift 

      Koch, Philip Otto (Massachusetts Institute of Technology, 1956)
    • Laser induced plasma ablation of biological tissue 

      Tobin, Jill M (Massachusetts Institute of Technology, 1985)
    • A laser system for trapping and cooling of ⁶Li atoms 

      Guardado-Sanchez, Elmer (Massachusetts Institute of Technology, 2015)
      In this thesis, I designed and built a laser system for the trapping and cooling of ⁶Li atoms. The thesis starts explaining a theoretical background of the necessary laser frequencies for the realization of a Zeeman Slower ...
    • The life of quanta : entanglement wormholes and the second law 

      Gharibyan, Hrant (Massachusetts Institute of Technology, 2014)
      This thesis explores two different topics in physics. The first is related to the study of the ER = EPR conjecture that relates the entanglement entropy of a collection of black holes to the cross sectional area of ...
    • Liquid Argon scintillation light quenching due to Nitrogen impurities : measurements performed for the MicroBooNE vertical slice test 

      Chiu, Christie Shinglei (Massachusetts Institute of Technology, 2013)
      The neutrino experiment MicroBooNE is currently under construction. To expedite the physics output of MicroBooNE, a smaller version of its optical detection system has been implemented. To demonstrate full operability of ...
    • Loading a planar RF Paul Trap from a cold Yb⁺ source 

      Shields, Brendan John (Massachusetts Institute of Technology, 2006)
      In this thesis, we demonstrate a functioning planar radio frequency, three-rod Paul Trap, loaded with Yb+ ions that have been photoionized from a source of neutral atoms, which were cooled in a magneto-optical trap. Planar ...
    • Loading rubidium atoms into a hollow core fiber 

      Chu, Yiwen (Massachusetts Institute of Technology, 2007)
      We demonstrate a procedure for cooling, trapping, and transferring rubidium atoms into a hollow core photonic band gap fiber. The atoms are first collected in a magneto-optical trap (MOT) and then cooled using polarization ...
    • Localization, escape rate and delocalization in kinked ratchet potentials 

      Choi, Sang Hyun (Massachusetts Institute of Technology, 2015)
      The particle localization in ratchet potentials with segments of reverse directions, or kinked ratchets, is computationally studied. Kinks localize a particle on on-off pulsating ratchet potentials, forming stable points ...
    • Low noise magnetic fields in ultracold experiment 

      Nolasco-Martinez, Eber. (Massachusetts Institute of Technology, 2020)
      Ultracold atomic and molecular experiments rely on low noise ambient magnetic fields for precision spectroscopy and studying Feshbach resonances with narrow linewidths, which can be on the order of 1 [mu] T. The ambient ...
    • Lower bounds on the classical simulation of quantum circuits for quantum supremacy 

      Dalzell, Alexander M (Massachusetts Institute of Technology, 2017)
      Despite continued experimental progress, no task has yet been performed on quantum technology that could not also have been performed quickly on today's classical computers. One proposed path toward achieving this milestone, ...
    • The M. I. T. linear accelerator as a pulsed neutron source for a time-of-flight neutron spectrometer 

      Burkhardt, James Lee.; Fox, John D. 1929- (Massachusetts Institute of Technology, 1951)
    • Magellan Instant Camera testbed 

      McEwen, Heather K. (Heather Kristine), 1982- (Massachusetts Institute of Technology, 2004)
      The Magellan Instant Camera (MagIC) is an optical CCD camera that was built at MIT and is currently used at Las Campanas Observatory (LCO) in La Serena, Chile. It is designed to be both simple and efficient with minimal ...
    • Magnetic holes in the solar wind 

      Seeluangsawat, Paisa, 1980- (Massachusetts Institute of Technology, 2002)
      We attempt to locate magnetic holes from several years of data collected from WIND and ACE spacecraft and use them to study some statistical properties of the magnetic holes.
    • Magnetic interaction of super-Earths with their host star and planet composition 

      Piso, Ana-Maria (Ana-Maria Adriana) (Massachusetts Institute of Technology, 2010)
      We study the magnetic field and the planet-star interactions of super Earths, extrasolar planets with masses between 1 and 10 times the mass of the Earth. We first present a model of the magnetic field of a super Earth, ...
    • Magnetic properties of an isolated quantum dot 

      Goldberg, Brian, 1979- (Massachusetts Institute of Technology, 2003)
    • Magnetically torqued thin accretion disks 

      Savcheva, Antonia Stefanova (Massachusetts Institute of Technology, 2006)
      We consider geometrically thin accretion disks around millisecond X-ray pulsars. We start with the Shakura-Sunyaev thin disk model as a basis and modify the disk equations with a magnetic torque from the central neutron ...
    • Mapping bulk electrical properties with non-contact RF measurements 

      Schwartz, Benjamin M. (Benjamin Matthew) (Massachusetts Institute of Technology, 2006)
      The human body is composed primarily of dielectric tissue with spatially varying permittivity and conductivity. Traditional MRI does not measure these properties. Instead, the conductivity of the patient is a nuisance, ...
    • Mass ratios in stellar triple systems that admit horseshoe orbits 

      Balaji, Bhaskaran (Massachusetts Institute of Technology, 2016)
      We examine possible configurations of stellar triple systems that give rise to "horseshoe orbits" in the smallest body. Several configurations are tested according to the initial parameters of mass for each of three bodies ...