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Browsing MIT Open Access Articles by Title

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  • Bayliss, Daniel D. R.; Winn, Joshua Nathan; Mardling, Rosemary A.; Sackett, Penny D. (Institute of Physics, 2010-10)
    We present high-precision radial velocity observations of WASP-17 throughout the transit of its close-in giant planet, using the MIKE spectrograph on the 6.5 m Magellan Telescope at Las Campanas Observatory. By modeling ...
  • Fang, Taotao; Buote, David A.; Humphrey, Philip J.; Canizares, Claude R.; Zappacosta, Luca; Maiolino, Roberto; Tagliferri, Gianpiero; Gastaldello, Fabio (IOP Publishing, 2010-04)
    In a previous paper, we reported a 3σ detection of an absorption line from the warm-hot intergalactic medium (WHIM) using the Chandra and XMM X-ray grating spectra of the blazar H2356-309, the sight line of which intercepts ...
  • Fang, Taotao; Canizares, Claude R.; Yao, Yangsen (IOP Publishing, 2007-08)
    We present new observations of PKS 2155-304 with the Chandra Low Energy Transmission Grating (LETG), using the Advanced CCD Imaging Spectrometer (ACIS). We confirm the detection of an absorption line plausibly identified ...
  • Jackiw, Roman; Pi, So-Young (American Physical Society, 2012-08)
    Extending previous work on two- and three-point functions, we study the four-point function and its conformal block structure in conformal quantum mechanics CFT[subscript 1], which realizes the SO(2,1) symmetry group. ...
  • Chesler, Paul; Lucas, Andrew; Sachdev, Subir (American Physical Society, 2014-01)
    We study (2+1)-dimensional conformal field theories (CFTs) with a globally conserved U(1) charge, placed in a chemical potential which is periodically modulated along the spatial direction x with zero average: μ(x)=V cos(kx). ...
  • Swingle, Brian Gordon (American Physical Society, 2012-07)
    The Fermi surface may be usefully viewed as a collection of (1+1)-dimensional chiral conformal field theories. This approach permits straightforward calculation of many anomalous ground-state properties of the Fermi gas, ...
  • Bimonte, G.; Emig, T.; Kardar, Mehran (Institute of Physics Publishing, 2013-10)
    Thermal fluctuations of a critical system induce long-ranged Casimir forces between objects that couple to the underlying field. For two-dimensional (2D) conformal field theories (CFT) we derive an exact result for the ...
  • Werner, Wendelin; Sheffield, Scott Roger (Princeton University Press, 2012-11)
    For random collections of self-avoiding loops in two-dimensional domains, we define a simple and natural conformal restriction property that is conjecturally satisfied by the scaling limits of interfaces in models from ...
  • Kaiser, David I. (American Physical Society, 2010-04)
    Many interesting models incorporate scalar fields with nonminimal couplings to the spacetime Ricci curvature scalar. As is well known, if only one scalar field is nonminimally coupled, then one may perform a conformal ...
  • Einert, T. R.; Netz, R. R.; Sing, Charles E.; Alexander-Katz, Alfredo (Springer-Verlag, 2011-12)
    We study the conformational dynamics within homopolymer globules by solvent-implicit Brownian dynamics simulations. A strong dependence of the internal chain dynamics on the Lennard-Jones cohesion strength ε and the globule ...
  • Kim, Do-Nyun; Altschuler, Josiah; Strong, Campbell; McGill, Gael; Bathe, Mark (Oxford University Press, 2010-11)
    The conformational dynamics data bank (CDDB, http://www.cdyn.org) is a database that aims to provide comprehensive results on the conformational dynamics of high molecular weight proteins and protein assemblies. Analysis ...
  • Hughes, Scott A.; Regimbau, T. (Institute of Physics, 2009-06)
    Double neutron stars are one of the most promizing sources for terrestrial gravitational wave interferometers. For actual interferometers and their planned upgrades, the probability of having a signal present in the data ...
  • Hancock, Kenneth E.; Chung, Yoojin; Delgutte, Bertrand (Springer Science+Business Media, 2013-03)
    Bilateral cochlear implant (CI) users perform poorly on tasks involving interaural time differences (ITD), which are critical for sound localization and speech reception in noise by normal-hearing listeners. ITD perception ...
  • Amin, Saurabh; Loiseau, Patrick; Schwartz, Galina; Musacchio, John; Sastry, S. Shankar (Institute of Electrical and Electronics Engineers (IEEE), 2011-12)
    We propose a raffle-based scheme for the decongestion of a shared resource. Our scheme builds on ideas from the economic literature on incentivizing contributions to a public good. We formulate a game-theoretic model for ...
  • Kaduk, Benjamin J.; Van Voorhis, Troy (American Institute of Physics, 2010-08)
    The constrained density functional theory–configuration interaction (CDFT-CI) method has previously been used to calculate ground-state energies and barrier heights. In this work, it is examined for use in computing ...
  • Williams, Timothy H.; Crucioli, David A.; Wilcox, William E., Jr.; Volpicelli, Alicia M.; Murphy, Robert J. (The International Society for Optical Engineering, 2009-08)
    Free space optical communication systems require robust pointing and tracking to establish and maintain lineof- sight (LOS). Atmospheric scintillation can present a challenge to the LOS tracking systems located at each end ...
  • Taylor, Joshua A.; Hover, Franz S. (Institute of Electrical and Electronics Engineers (IEEE), 2011-08)
    We apply lift-and-project type relaxations for polynomial optimization problems to AC transmission system planning, and obtain new second-order cone and semidefinite models. The models are compared to linear and nonlinear ...
  • Ishii, Akio; Li, Ju; Ogata, Shigenobu (Public Library of Science, 2013-04)
    Dislocation pipe diffusion seems to be a well-established phenomenon. Here we demonstrate an unexpected effect, that the migration of interstitials such as carbon in iron may be accelerated not in the dislocation line ...
  • Rochat, Sebastien; Swager, Timothy Manning (American Chemical Society (ACS), 2013-05)
    Thanks to their unique optical and electrochemical properties, conjugated polymers have attracted considerable attention over the last two decades and resulted in numerous technological innovations. In particular, their ...
  • Swager, Timothy Manning; Dane, Eric L.; King, Sarah B. (American Chemical Society (ACS), 2010-05)
    Thioether-containing poly(para-phenylene-ethynylene) (PPE) copolymers show a strong fluorescence turn-on response when exposed to oxidants in solution as a result of the selective conversion of thioether substituents into ...
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