Quantized Evolution of the Plasmonic Response in a Stretched Nanorod

Tuomas P. Rossi, Asier Zugarramurdi, Martti J. Puska, Risto M. Nieminen

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

33 Sitaatiot (Scopus)
523 Lataukset (Pure)

Abstrakti

We propose a hexagonal optical lattice system with spatial variations in the hopping matrix elements. Just like in the valley Hall effect in strained graphene, for atoms near the Dirac points the variations in the hopping matrix elements can be described by a pseudomagnetic field and result in the formation of Landau levels. We show that the pseudomagnetic field leads to measurable experimental signatures in momentum resolved Bragg spectroscopy, Bloch oscillations, cyclotron motion, and quantization of in situ densities. Our proposal can be realized by a slight modification of existing experiments. In contrast to previous methods, pseudomagnetic fields are realized in a completely static system avoiding common heating effects and therefore opening the door to studying interaction effects in Landau levels with cold atoms.
AlkuperäiskieliEnglanti
Artikkeli236804
Sivut1-6
Sivumäärä6
JulkaisuPhysical Review Letters
Vuosikerta115
Numero23
DOI - pysyväislinkit
TilaJulkaistu - 1 joulukuuta 2015
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

Tutkimusalat

  • electronic structure
  • nanoparticles
  • plasmonics
  • time-dependent density-functional theory

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