Signatures of bosonic excitations in high-harmonic spectra of Mott insulators

Lysne Markus
Lysne Markus
Murakami Yuta
Murakami Yuta

Physical Review B, pp. 1951392020.

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Abstract:

The high harmonic spectrum of the Mott insulating Hubbard model has recently been shown to exhibit plateau structures with cutoff energies determined by $n$th nearest neighbor doublon-holon recombination processes. The spectrum thus allows to extract the on-site repulsion $U$. Here, we consider generalizations of the single-band Hubbard...More

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