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Browsing MIT Open Access Articles by Title

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  • Cziczo, Daniel James; Froyd, Karl D.; Hoose, Corinna; Jensen, Eric J.; Diao, Minghui; Zondlo, Mark A.; Smith, Jessica B.; Twohy, Cynthia H.; Murphy, Daniel M. (American Association for the Advancement of Science (AAAS), 2013-05)
    Formation of cirrus clouds depends on the availability of ice nuclei to begin condensation of atmospheric water vapor. Although it is known that only a small fraction of atmospheric aerosols are efficient ice nuclei, the ...
  • Rodriguez, Alejandro W.; Hui, Pui-Chuen; Woolf, David P.; Lončar, Marko; Capasso, Federico; Johnson, Steven G (John Wiley & Sons, 2014-11)
    Whether intentionally introduced to exert control over particles and macroscopic objects, such as for trapping or cooling, or whether arising from the quantum and thermal fluctuations of charges in otherwise neutral bodies, ...
  • Shapiro, Jeffrey H.; Venkatraman, Dheera; Wong, Franco N. C. (Nature Publishing Group, 2015-05)
    Barreto Lemos et al. [Nature 512, 409–412 (2014)] reported an experiment in which a non-degenerate parametric downconverter and a non-degenerate optical parametric amplifier—used as a wavelength-converting phase conjugator—were ...
  • Shapere, Alfred; Wilczek, Frank (American Physical Society, 2012-10)
    We consider the possibility that classical dynamical systems display motion in their lowest-energy state, forming a time analogue of crystalline spatial order. Challenges facing that idea are identified and overcome. We ...
  • De Sole, Alberto; Valeri, Daniele; Kac, Victor (Springer-Verlag, 2013-08)
    We describe of the generalized Drinfeld-Sokolov Hamiltonian reduction for the construction of classical W-algebras within the framework of Poisson vertex algebras. In this context, the gauge group action on the phase space ...
  • Valeri, Daniele; Sole, Alberto De; Kac, Victor (Springer Berlin Heidelberg, 2014-05)
    We derive explicit formulas for λ-brackets of the affine classical W-algebras attached to the minimal and short nilpotent elements of any simple Lie algebra g. This is used to compute explicitly the first non-trivial PDE ...
  • Aloupis, Greg; Demaine, Erik D.; Guo, Alan; Viglietta, Giovanni (Wiley Blackwell, 2014)
    We prove NP-hardness results for five of Nintendo’s largest video game franchises: Mario, Donkey Kong, Legend of Zelda, Metroid, and Pokemon. Our results apply to generalized versions of Super Mario Bros. 1, 3, Lost Levels, ...
  • Barkeshli, Maissam; Wen, Xiao-Gang (American Physical Society, 2010-12)
    A large class of fractional quantum Hall (FQH) states can be classified according to their pattern of zeros, which describes the way ideal ground-state wave functions go to zero as various clusters of electrons are brought ...
  • Xie, Dan; Wang, Yifan (American Physical Society, 2016-09)
    We obtain a large class of new four-dimensional Argyres-Douglas theories by classifying irregular punctures for the six-dimensional (2, 0) superconformal theory of ADE type on a sphere. Along the way, we identify the ...
  • Boyallian, Carina; Liberati, José I.; Kac, Victor (Springer-Verlag, 2012-11)
    We classify all continuous degenerate irreducible modules over the exceptional linearly compact Lie superalgebra E(1, 6), and all finite degenerate irreducible modules over the exceptional Lie conformal superalgebra ...
  • Chen, Xie; Gu, Zheng-Cheng; Wen, Xiao-Gang (American Physical Society, 2011-01)
    Quantum many-body systems divide into a variety of phases with very different physical properties. The questions of what kinds of phases exist and how to identify them seem hard, especially for strongly interacting systems. ...
  • Meng, Jia; Robbins, Kay; Huang, Yufei; Merino, Lenis Mauricio (Springer US, 2013-09)
    Classification based on EEG data in an RSVP experiment is considered. Although the latency in neural response relative to the stimulus onset time may be more realistically considered to vary across trials due to factors ...
  • Wang, Chong; Potter, Andrew C.; Todadri, Senthil (American Association for the Advancement of Science (AAAS), 2014-02)
    A fundamental open problem in condensed-matter physics is how the dichotomy between conventional and topological band insulators is modified in the presence of strong electron interactions. We show that there are six ...
  • Cantarini, Nicoletta; Kac, Victor (Springer-Verlag, 2010-04)
    We classify simple linearly compact n-Lie superalgebras with n > 2 over a field F of characteristic 0. The classification is based on a bijective correspondence between non-abelian n-Lie superalgebras and transitive Z-graded ...
  • Gu, Zheng-Cheng; Wang, Zhenghan; Wen, Xiao-Gang (American Physical Society, 2015-03)
    The string-net approach by Levin and Wen, and the local unitary transformation approach by Chen, Gu, and Wen, provide ways to classify topological orders with gappable edge in two-dimensional (2D) bosonic systems. The two ...
  • Varshney, Kush R.; Willsky, Alan S. (Association for Computing Machinery (ACM), 2010-02)
    A variational level set method is developed for the supervised classification problem. Nonlinear classifier decision boundaries are obtained by minimizing an energy functional that is composed of an empirical risk term ...
  • Morrison, David R.; Taylor, Washington (Versita (Central European Science Journals), 2012-10)
    We classify six-dimensional F-theory compactifications in terms of simple features of the divisor structure of the base surface of the elliptic fibration. This structure controls the minimal spectrum of the theory. We ...
  • Wen, Xiao-Gang (American Physical Society, 2013-08)
    In this paper, we systematically study gauge anomalies in bosonic and fermionic weak-coupling gauge theories with gauge group G (which can be continuous or discrete) in d space-time dimensions. We show a very close relation ...
  • Singh, Vivek Kumar; Freeman, Laura; Lepri, Bruno; Pentland, Alex Paul (Academy of Science and Engineering, 2013-06)
    Human spending behavior is essentially social. This work motivates and grounds the use of mobile phone based social interaction features for classifying spending behavior. Using a data set involving 52 adults (26 couples) ...
  • Wei, Yifeng; Funk, Michael Andrew; Rosado, Leonardo A.; Baek, Jiyeon; Drennan, Catherine L.; Stubbe, JoAnne (National Academy of Sciences (U.S.), 2014-08)
    The class III anaerobic ribonucleotide reductases (RNRs) studied to date couple the reduction of ribonucleotides to deoxynucleotides with the oxidation of formate to CO[subscript 2]. Here we report the cloning and heterologous ...
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