Now showing items 13-32 of 488

    • An analytical study of the Fresnel wave-surface 

      Williams, Elizabeth L (Massachusetts Institute of Technology, 1903)
    • Analyzing CMS open collider data through topic modeling 

      Mastandrea, Radha. (Massachusetts Institute of Technology, 2019)
      We conduct an investigation of jet substructure at the Large Hadron Collider (LHC) on the CMS Open Data. We analyze a sample of jets detected by the CMS experiment in 2011 with the companion simulated (both pre- and ...
    • Analyzing recent latitudinal and seasonal changes in simulated atmospheric temperatures from a global chemistry-climate model 

      Benjamin, Jordan T. (Massachusetts Institute of Technology, 2019)
      Recent work by Santer et al. (2018) in Science examined the usefulness of the latitudinal structure and seasonal behavior of warming for fingerprinting anthropogenic climate change using satellite data and the CMIP5 ...
    • Analyzing the large-scale curvature of interplanetary shocks 

      Vogt, Marissa Farland (Massachusetts Institute of Technology, 2006)
      The 3-dimensional structure of interplanetary shock surfaces are analyzed using observations from the Wind and ACE spacecraft. Events seen by both spacecraft were selected from the available data and used to calculate the ...
    • Anomalous Hall effect and persistent valley currents in graphene p-n junctions/ 

      Samutpraphoot, Polnop (Massachusetts Institute of Technology, 2014)
      Dirac particles can exhibit Hall-like transport induced by Berry's gauge field in the absence of magnetic field. We develop a detailed picture of this unusual effect for charge carriers in graphene nanostructures. The Hall ...
    • Applications of correlated photon pairs : sub-shot noise interferometry and entanglement 

      Loh, Huanqian (Massachusetts Institute of Technology, 2006)
      Using cesium atoms weakly coupled to a low-finesse cavity, we have generated photon pairs that are highly correlated in a non-classical way, as demonstrated by a large violation of the Cauchy-Schwartz inequality G = 760 ...
    • Applying AdS/CFT to many body systems 

      Lin, Ying-Hsuan, S.B. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2010)
      In this thesis, we model a many body system by a conformal field theory, and calculate the correlation function of a scalar operator in this theory using the AdS/CFT correspondence. We describe numerical techniques for ...
    • Asteroseismic Study of the Subgiant HD 82074 

      Villar, Victoria Ashley (Massachusetts Institute of Technology, 2014)
      This thesis analyzes HD 82074, a solar-mass and low-metallicity subgiant star, using ground-based asteroseismology with the CHIRON spectrometer at the Cerro Tololo Inter-American Observatory (CTIO) and interferometry with ...
    • Astronaut adaptive arm motions on the MIR Space Station : kinematic analysis 

      Thibault, Karen (Karen Camille), 1975- (Massachusetts Institute of Technology, 1998)
    • Atomic quantum memory for photon polarization 

      Bloom, Benjamin Jacob, S.B. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2008)
      Using an ensemble of ultracold Cesium atoms in an optical cavity we demonstrate the efficient storage and retrieval of quantum information in the form of single photons. We use a photon that has scattered into the cavity ...
    • An attempt to measure the time delays of three gravitational lenses 

      Chistol, Gheorghe (Massachusetts Institute of Technology, 2007)
      I present the results of reduction and analysis of two seasons of gravitational lens monitoring using the Very Large Array (VLA) at 8.5 GHz. The campaign monitored five gravitational lenses, GL1608, GL1830, GL1632, GL1838, ...
    • Automatic detection of periodic sources in the K2 data sets 

      Molnar, Momchil Emil (Massachusetts Institute of Technology, 2016)
      We present an automated algorithm for the detection of periodic sources in the K2 data sets. Fast discreet Fourier transformations are used to compute the Fourier spectra of the targets and two different detection algorithms ...
    • Baffle material characterization for Advanced LIGO 

      Hunt, Cassandra R (Massachusetts Institute of Technology, 2008)
      The transition to Advanced LIGO introduces new sensitivity requirements for the LIGO interferometers. When light scatters away from the main laser beam, then scatters off the beam tube and returns to the main beam, noise ...
    • Bayesian modeling of microwave foregrounds 

      Rahlin, Alexandra Sasha (Massachusetts Institute of Technology, 2008)
      In the past decade, advances in precision cosmology have pushed our understanding of the evolving Universe to new limits. Since the discovery of the cosmic microwave background (CMB) radiation in 1965 by Penzias and Wilson, ...
    • The behavior of O - C curves for contact binaries in the Kepler catalog 

      Tran, Kathy, S.B. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2013)
      In this thesis, we study the timing of eclipses for contact binary systems in the Kepler catalog. Observed eclipse times were determined from Kepler long-cadence light curves and "observed minus calculated" (0 - C) curves ...
    • A biomechanical study of a karate strike. 

      Wilk, Stephen Richard (Massachusetts Institute of Technology, 1977)
    • Bound states of pseudo-Dirac dark matter 

      Bhattacharya, Arindam(Arindam A.) (Massachusetts Institute of Technology, 2019)
      We study the bound-state spectrum in a simple model of pseudo-Dirac dark matter, and examine how the rate of bound-state formation through radiative capture compares to Sommerfeld-enhanced annihilation. We use this model ...
    • Boundary conditions, effective action, and Virasoro algebra for AdS₃ 

      Porfyriadis, Achilleas P (Massachusetts Institute of Technology, 2010)
      We construct an effective action of General Relativity for small excitations from asymptotic transformations and use it to study conformal symmetry in the boundary of AdS3. By requiring finiteness of the boundary effective ...
    • Building a better flat-field : an instrumental calibration projector for the Large Synoptic Survey Telescope 

      Vaz, Amali L (Massachusetts Institute of Technology, 2011)
      The Large Synoptic Survey Telescope (LSST) is a next-generation ground-based survey telescope whose science objectives demand photometric precision at the 1% level. Recent efforts towards 1% photometry have advocated in-situ ...
    • Building an apparatus for ultracold lithium-potassium Fermi-Fermi mixtures 

      Campbell, Sara L., S.B. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2010)
      In this thesis, I designed and built laser systems to cool, trap and image lithium-6 and potassium-40 atoms. I also constructed the vacuum system for the experiment and experimentally tested a new method to coat the chamber ...