Quantized Evolution of the Plasmonic Response in a Stretched Nanorod

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Abstract

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.

Details

Original languageEnglish
Article number236804
Pages (from-to)1-6
Number of pages6
JournalPhysical Review Letters
Volume115
Issue number23
Publication statusPublished - 1 Dec 2015
MoE publication typeA1 Journal article-refereed

    Research areas

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

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