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Browsing MIT Open Access Articles by Title

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  • Levitov, Leonid; Young, Andrea F. (American Physical Society (APS), 2011-08)
    The unique capabilities of capacitance measurements in bilayer graphene enable probing of layer-specific properties that are normally out of reach in transport measurements. Furthermore, capacitance measurements in the ...
  • Lloyd, Seth; Giovannetti, Vittorio; Lupo, Cosmo; Mancini, Stefano; Pirandola, Stefano (American Physical Society, 2012-06)
    A wide variety of communication channels employ the quantized electromagnetic field to convey information. Their communication capacity crucially depends on losses associated to spatial characteristics of the channel such ...
  • Schafer, Joachim; Daems, David; Karpov, Evgueni; Cerf, Nicolas J. (American Physical Society, 2009-12)
    We address the classical capacity of a quantum bosonic memory channel with additive noise, subject to an input energy constraint. The memory is modeled by correlated noise emerging from a Gauss-Markov process. Under ...
  • Mitter, Sanjoy K.; Tatikonda, Sekhar (Institute of Electrical and Electronics Engineers, 2008-12)
    In this paper, we introduce a general framework for treating channels with memory and feedback. First, we prove a general feedback channel coding theorem based on Massey's concept of directed information. Second, we present ...
  • Como, Giacomo; Fagnani, Fabio (Institute of Electrical and Electronics Engineers, 2009-04)
    The capacity of finite Abelian group codes over symmetric memoryless channels is determined. For certain important examples, such as m -PSK constellations over additive white Gaussian noise (AWGN) channels, with m a prime ...
  • Leung, Debbie W.; Lim, Joungkeun; Shor, Peter W. (American Physical Society, 2009-11)
    We present a communication protocol for the erasure channel assisted by backward classical communication, which achieves a significantly better rate than the best prior result. In addition, we prove an upper bound for the ...
  • Prabhakaran, Vivek; Rypma, Bart; Narayanan, Nandakumar S.; Meier, Timothy B.; Austin, Benjamin P.; Nair, Veena A.; Naing, Lin; Thomas, Lisa E.; Gabrieli, John D. E. (Public Library of Science, 2011-11)
    Working memory (WM) capacity and WM processing speed are simple cognitive measures that underlie human performance in complex processes such as reasoning and language comprehension. These cognitive measures have shown to ...
  • Castleberry, Steven A.; Li, Wei; Deng, Di; Hammond, Paula T.; Mayner, Sarah E. (American Chemical Society (ACS), 2014-05)
    Layer-by-layer (LbL) assembly is a powerful tool with increasing real world applications in energy, biomaterials, active surfaces, and membranes; however, the current state of the art requires individual sample construction ...
  • Holtzman, Ran; Juanes, Ruben; Szulczewski, Michael Lawrence (American Physical Society, 2012-06)
    We study the displacement of immiscible fluids in deformable, noncohesive granular media. Experimentally, we inject air into a thin bed of water-saturated glass beads and observe the invasion morphology. The control ...
  • Frolov, Timofey; Carter, W. Craig; Asta, Mark (American Chemical Society (ACS), 2014-05)
    In this study, we present atomistic simulations and theoretical analyses that reveal a capillary instability that is intrinsic to wetting geometries characteristic of the vapor–liquid–solid mechanism for nanowire growth. ...
  • Speth, Raymond L.; Lauga, Eric (Institute of Physics Publishing, 2009-07)
    A recent experiment showed that cylindrical segments of water filling a hydrophilic stripe on an otherwise hydrophobic surface display a capillary instability when their volume is increased beyond the critical volume at ...
  • Peruzzo, Paolo; Defina, Andrea; Stocker, Roman; Nepf, Heidi (American Physical Society, 2013-10)
    Surface-piercing vegetation often captures particles that flow on the water surface, where surface tension forces contribute to capture. Yet the physics of capillary capture in flow has not been addressed. Here we model ...
  • Jung, Sunghwan; Reis, Pedro Miguel; James, Jillian; Clanet, Christophe; Bush, John W. M. (American Institute of Physics, 2009-09)
    Capillary forces dominate gravity on a small scale and may deform flexible bodies in both natural and laboratory settings. Two examples are considered here: floating flowers and spider webs.
  • Zhao, Benzhong; MacMinn, Christopher W.; Huppert, Herbert E.; Juanes, Ruben (American Geophysical Union (Wiley platform), 2014-09)
    Gravity-driven flows in the subsurface have attracted recent interest in the context of geological carbon dioxide (CO[subscript 2]) storage, where supercritical CO[subscript 2] is captured from the flue gas of power plants ...
  • Peruzzo, Paolo; Defina, Andrea; Nepf, Heidi (American Geophysical Union (AGU), 2012-07)
    The seeds of many aquatic plants are buoyant and thus transported at the water surface, where they are subject to surface tension that may enhance their retention within emergent vegetation. Specifically, seeds may be ...
  • Liu, Vincent Hok; Song, Yong-Ak; Han, Jongyoon (Royal Society of Chemistry (RSC Publishing), 2010-02)
    In this paper, we report a novel method for fabricating ion-selective membranes in poly(dimethylsiloxane) (PDMS)/glass-based microfluidic preconcentrators. Based on the concept of capillary valves, this fabrication method ...
  • Giroud, Xavier; Mueller, Holger M. (American Finance Association/Wiley, 2015-07)
    We document how a positive shock to investment opportunities at one plant (“treated plant”) spills over to other plants within the same firm, but only if the firm is financially constrained. To provide the treated plant ...
  • Powell, Douglas M.; Fu, Ran; Horowitz, Kelsey; Basore, Paul A.; Woodhouse, Michael; Buonassisi, Tonio (Royal Society of Chemistry, 2015-09)
    Using a bottom-up cost model, we assess the impact of initial factory capital expenditure (capex) on photovoltaic (PV) module minimum sustainable price (MSP) and industry-wide trends. We find capex to have two important ...
  • Farhi, Emmanuel; Werning, Ivan (University of Chicago Press, The, 2012-06)
    Economies with private information provide a rationale for capital taxation. In this paper we ask what the welfare gains from following this prescription are. We develop a method to answer this question in standard general ...
  • Scheuer, Florian; Wolitzky, Alexander Greenberg (American Economic Association (AEA), 2016-08)
    This paper studies optimal dynamic tax policy under the threat of political reform. A policy will be reformed ex post if a large enough coalition of citizens supports reform; thus, sustainable policies are those that will ...
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