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      https://www.ias.ac.in/article/fulltext/pram/053/01/0237-0242

    • Keywords

       

      Nonequilibrium noise; membranes; active pumps

    • Abstract

       

      We study the statistical properties and dynamics of flexible fluid membranes containing active transmembrane proteins and find that such active membranes can be either stable or unstable to small disturbances, depending on the signs of certain crucial parameters characterising the protein-membrane interaction. A major finding is that the shape-fluctuation spectrum in the stable case for a zero-tension active membrane has the same form over a large range of length scales as at equilibrium, but with a nonequilibrium “noise temperature” determined by the activity.

    • Author Affiliations

       

      Sriram Ramaswamy1 John Toner1 2 Jacques Prost1 3

      1. Centre for Condensed Matter Theory, Department of Physics, Indian Institute of Science, Bangalore - 560 012, India
      2. Department of Physics, University of Oregon, Eugene, OR - 97408-1274, USA
      3. Section de Recherche, Institut Curie, 26 rue d’Ulm, Paris cedex 05 - 75231, France
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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