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Light induced inverse-square law interactions between nanoparticles: “mock gravity” at the nanoscale

  • Luis-Hita, J. Donostia International Physics Center (DIPC), Donostia-San Sebastian, Spain
  • Marqués, M. I. Condensed Matter Physics Center (IFIMAC) and Instituto “Nicolás Cabrera,” Madrid, Spain - Departamento de Física de Materiales, Madrid, Spain
  • Delgado-Buscalioni, R. Condensed Matter Physics Center (IFIMAC) and Instituto “Nicolás Cabrera,” Madrid, Spain - Departamento de Física Teórica de la Materia Condensada, Madrid, Spain
  • Sousa, N. de Donostia International Physics Center (DIPC), Donostia-San Sebastian, Spain
  • Froufe-Pérez, Luis S. Department of Physics, University of Fribourg, Switzerland
  • Scheffold, Frank Department of Physics, University of Fribourg, Switzerland
  • Sáenz, J. J. Donostia International Physics Center (DIPC), Donostia-San Sebastian, Spain - IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
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    02.10.2019
Published in:
  • Physical Review Letters. - 2019, vol. 123, no. 14, p. 143201
English The interaction forces between identical resonant molecules or nanoparticles, optically induced by a quasimonochromatic isotropic random light field, are theoretically analyzed. In general, the interaction force exhibits a far-field oscillatory behavior at separation distances larger than the light wavelength. However, we show that the oscillations disappear when the frequency of the random field is tuned to an absorption Fröhlich resonance, at which the real part of the particle’s electric polarizability is zero. At the resonant condition, the interaction forces follow a long- range gravitylike inverse square distance law which holds for both near- and far-field separation distances.
Faculty
Faculté des sciences et de médecine
Department
Département de Physique
Language
  • English
Classification
Physics
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/308178
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