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Sökning: WFRF:(Kardar Mehran)

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1.
  • French, Roger H., et al. (författare)
  • Long range interactions in nanoscale science
  • 2010
  • Ingår i: Reviews of Modern Physics. - 0034-6861. ; 82:2, s. 1887-1944
  • Forskningsöversikt (refereegranskat)abstract
    • Our understanding of the “long range” electrodynamic, electrostatic, and polar interactions that dominate the organization of small objects at separations beyond an interatomic bond length is reviewed. From this basic-forces perspective, a large number of systems are described from which one can learn about these organizing forces and how to modulate them. The many practical systems that harness these nanoscale forces are then surveyed. The survey reveals not only the promise of new devices and materials, but also the possibility of designing them more effectively.
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2.
  • Solon, Alexandre P, et al. (författare)
  • Pressure and Phase Equilibria in Interacting Active Brownian Spheres
  • 2015
  • Ingår i: Physical Review Letters. - 1079-7114. ; 114, s. 198301-198301
  • Tidskriftsartikel (refereegranskat)abstract
    • We derive a microscopic expression for the mechanical pressure P in a system of spherical active Brownian particles at density ρ. Our exact result relates P, defined as the force per unit area on a bounding wall, to bulk correlation functions evaluated far away from the wall. It shows that (i) P(ρ) is a state function, independent of the particle-wall interaction; (ii) interactions contribute two terms to P, one encoding the slow-down that drives motility-induced phase separation, and the other a direct contribution well known for passive systems; and (iii) P is equal in coexisting phases. We discuss the consequences of these results for the motility-induced phase separation of active Brownian particles and show that the densities at coexistence do not satisfy a Maxwell construction on P.
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