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Browsing MIT Open Access Articles by Title

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  • Singal, J.; Petrosian, V.; Ko, Allan (IOP Publishing, 2014-04)
    We present the redshift evolutions and distributions of the gamma-ray luminosity and photon spectral index of flat spectrum radio quasar (FSRQ) type blazars, using non-parametric methods to obtain the evolutions and ...
  • Hering, K.P.; Kramm, B.; Meyer, B.K.; Brandt, Riley E.; Buonassisi, Tonio (Elsevier, 2014-01)
    Several growth methods were employed to investigate the photovoltaic behavior of GaN/Cu[subscript 2]O heterojunctions by depositing cuprous oxide thin films on top of gallium nitride templates. The templates consist of a ...
  • Chung, J. W.; Ryu, Kevin K.; Palacios, Tomas (Institute of Electrical and Electronics Engineers (IEEE), 2010-11)
    The Si substrate of GaN-on-Si wafers offers new opportunities to increase the functionality and performance of nitride-based devices. This paper will review three examples of these new devices/systems. First, GaN-on-Si ...
  • Lu, Bin; Piedra, Daniel; Palacios, Tomas (Institute of Electrical and Electronics Engineers (IEEE), 2010-12)
    Between 5 and 10% of the world's electricity is wasted as dissipated heat in the power electronic circuits needed, for example, in computer power supplies, motor drives or the power inverters of photovoltaic systems. This ...
  • Lan, Tian; Wen, Xiao-Gang; Wang, Juven (American Physical Society, 2015-02)
    Gapped domain walls, as topological line defects between (2+1)D topologically ordered states, are examined. We provide simple criteria to determine the existence of gapped domain walls, which apply to both Abelian and ...
  • Zeng, Bei; Wen, Xiao-Gang (American Physical Society, 2015-03)
    In this work, we present some new understanding of topological order, including three main aspects. (1) It was believed that classifying topological orders corresponds to classifying gapped quantum states. We show that ...
  • Wen, Xiao-Gang; Liu, Min; Liu, Zheng-Xin (American Physical Society, 2011-08)
    We study different quantum phases in integer spin systems with on-site D[subscript 2h]=D[subscript 2]⊗Z[subscript 2] and translation symmetry. We find four distinct nontrivial phases in S=1 spin chains despite the fact ...
  • Wang, Chong; Potter, Andrew C.; Todadri, Senthil (American Physical Society, 2013-09)
    It is well known that the three-dimensional (3D) electronic topological insulator (TI) with charge-conservation and time-reversal symmetry cannot have a trivial insulating surface that preserves symmetry. It is often ...
  • Chen, Xie; Zeng, Bei; Gu, Zheng-Cheng; Yoshida, Beni; Chuang, Isaac L. (American Physical Society, 2009-06)
    Many-body entangled quantum states studied in condensed matter physics can be primary resources for quantum information, allowing any quantum computation to be realized using measurements alone, on the state. Such a universal ...
  • Agarwal, Niket; Krishna, Tushar; Peh, Li-Shiuan; Jha, Niraj K. (Institute of Electrical and Electronics Engineers (IEEE), 2009-05)
    Until very recently, microprocessor designs were computation-centric. On-chip communication was frequently ignored. This was because of fast, single-cycle on-chip communication. The interconnect power was also insignificant ...
  • Lawler, S. M.; Herbst, W.; Redfield, S.; Hamilton, C. M.; Johns-Krull, C. M.; Winn, Joshua Nathan; Johnson, J. A.; Mundt, R. (IOP Publishing, 2010-02)
    Na I D lines in the spectrum of the young binary KH 15D have been analyzed in detail. We find an excess absorption component that may be attributed to foreground interstellar absorption, and to gas possibly associated with ...
  • Guerra-Garcia, Carmen; Martinez-Sanchez, Manuel (IOP Publishing, 2013-08)
    In this paper we evaluate the dynamics of non-thermal plasmas developing in extremely non-homogeneous environments. We present the gas-confined barrier discharge (GBD) concept and justify its importance as a first step to ...
  • Kelleher, Aidan Michael; Averett, T.; Dolph, P. A. M.; Mooney, K. E.; Nelyubin, V.; Singh, J.; Tobias, W. A. (American Physical Society, 2011-12)
    The dynamics of the movement of gas is discussed for two-chambered polarized 3He target cells of the sort that have been used successfully for many electron-scattering experiments. A detailed analysis is presented showing ...
  • Kraft, R. P.; Forman, W. R.; Jones, C.; Nulsen, P. E. J.; Hardcastle, M. J.; Raychaudhury, S.; Sivakoff, G. R.; Sarazin, C. L.; Evans, Daniel A. (IOP Publishing, 2010-12)
    We present results from a 100 ks XMM-Newton observation of the hot gas in the Virgo cluster elliptical galaxy NGC 4472. We find a surface brightness discontinuity ~21 kpc north of the nucleus, consistent with being a contact ...
  • Martoff, C. J.; Sciolla, Gabriella (Institute of Physics Publishing, 2009-10)
    Dark matter (DM) detectors with directional sensitivity have the potential of yielding an unambiguous positive observation of WIMPs as well as discriminating between galactic DM halo models. In this paper, we introduce the ...
  • Melis, Carl; Dufour, P.; Farihi, J.; Bochanski, J.; Burgasser, Adam J.; Parsons, S. G.; Gänsicke, B. T.; Koester, D.; Swift, Brandon J. (Institute of Physics/American Astronomical Society, 2012-05)
    We present new spectroscopic observations of the polluted, dusty, helium-dominated atmosphere white dwarf star HE 1349–2305. Optical spectroscopy reveals weak Ca II infrared triplet emission indicating that metallic gas ...
  • Hadjiconstantinou, Nicolas; Manela, A. (American Institute of Physics (AIP), 2010-06)
    We study the flow-field generated in a one-dimensional wall-bounded gas layer due to an arbitrary small-amplitude time variation in the temperature of its boundaries. Using the Fourier transform technique, analytical results ...
  • Hollmann, E. M.; Whyte, D. G.; Antar, G. Y.; Bakhtiari, M.; Boedo, J. A.; Evans, T. E.; Hutchinson, Ian H.; Jernigan, T. C.; Gray, D. S.; Groth, M.; Humphreys, D. A.; Lasnier, C. J.; Moyer, R. A.; Parks, P. B; Rudakov, D. L.; Strait, E. J.; Wesley, J.; West, W. P.; Wurden, G.; Yu, J.; Granetz, Robert S.; Izzo, Viviana A.; Bader, Aaron Craig; Biewer, T.; Hutchinson, Ian H.; Reinke, Matthew Logan; Terry, James L. (Institute of Physics Publishing, 2007-08)
    High-pressure noble gas jet injection is a mitigation technique which potentially satisfies the requirements of fast response time and reliability, without degrading subsequent discharges. Previously reported gas jet ...
  • Kulkarni, Amol A.; Jensen, Klavs F.; Nieves-Remacha, Maria Jose (American Chemical Society (ACS), 2013-05)
    Hydrodynamics and mass transfer of gas–liquid flow are explored under ambient conditions in an Advanced-Flow Reactor (AFR), an emerging commercial system designed for continuous manufacture. Carbon dioxide/water is the ...
  • Clevenson, Hannah A.; Desjardins, Pierre; Gan, Xuetao; Englund, Dirk Robert (Optical Society of America, 2013-06)
    We present a high-sensitivity, multi-use optical gas sensor based on a one-dimensional polymer photonic crystal cavity. With an experimental Q exceeding 13100, we predict detection levels on the parts-per-billion range for ...
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