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Showing 1–7 of 7 results
Advanced filters: Author: Rituparno Mandal Clear advanced filters

  • Geometrical frustration in confined systems can lead to the emergence of topological defects, which significantly influence the physical properties of materials. This study demonstrates that grain boundary scars in dense assemblies of active spinners can decouple edge flows from the bulk, resulting in spontaneous self-shearing and a chiral activity-mediated reentrant melting transition.

    • Uttam Tiwari
    • Pragya Arora
    • Rajesh Ganapathy
    ResearchOpen Access
    Nature Communications
    P: 1-8

  • The emergence of correlated and self-organized linear structures, known as force chains, is relevant for granular materials, foams, emulsions, and extreme active matter. The authors develop a machine learning-based approach to predict force chain formation in jammed disordered solids under deformation.

    • Rituparno Mandal
    • Corneel Casert
    • Peter Sollich
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-7

  • The field of dense active matter has been the fount of many intriguing phenomena. Here, authors show that nonreciprocal interactions can emerge between active particles due to a dynamical feedback between their motility and the corresponding slow remodelling of a dense passive compressible medium.

    • Jyoti Prasad Banerjee
    • Rituparno Mandal
    • Madan Rao
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-10

  • While active matter exhibits unusual dynamics at low density, high density behavior has not been explored. Mandal et al. show that extreme dense active matter, shows a rich spectrum of behaviour from intermittent plastic bursts and turbulence, to glassy states and jamming in the limit of infinite persistence time.

    • Rituparno Mandal
    • Pranab Jyoti Bhuyan
    • Madan Rao
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-8

  • Molecular crystals are typically less stiff than metals or ceramics. Here the authors report an organic elastically bendable co-crystal with stiffness comparable to low-density metals, hardness similar to stainless steel and reveal the molecular mechanism which lead to these mechanical properties.

    • Somnath Dey
    • Susobhan Das
    • C. Malla Reddy
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-10

  • Crowded systems of active particles show collective movement with pronounced velocity correlations. Using simulations and analytical theory, the authors show that very similar movement patterns with the same velocity correlations are found if a small number of randomly moving active particles is added to a dense system of passive particles.

    • Leila Abbaspour
    • Rituparno Mandal
    • Stefan Klumpp
    ResearchOpen Access
    Communications Physics
    Volume: 7, P: 1-7