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PreprintCC BY 4.0arXiv

Hubbard models with ultracold shielded molecules in optical lattices

  • Kevin Pérez
  • Joseph W. Desroches
  • Kaden R. A. Hazzard
  • Tijs Karman
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Abstract

We show that, in appropriate regimes, ultracold collisionally shielded molecules in an optical lattice realize a controlled extended Hubbard model, despite their large-radius hard-core repulsion. We compute the Hubbard parameters and show lattice depth and microwave-induced dipolar interactions provide flexible, independent control of on- and off-site interactions. This makes shielded molecules a powerful platform for extended Hubbard models and enables an interaction microscope that can distinguish inter-hole interactions in doped Mott insulators - crucial to superconductivity and strange metallicity - that are indistinguishable with quantum gas microscopy alone.

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Cite

BibTeXRIS
BibTeX
@misc{perez2026hubbard,
  title = {{Hubbard models with ultracold shielded molecules in optical lattices}},
  author = {Kevin Pérez and Joseph W. Desroches and Kaden R. A. Hazzard and Tijs Karman},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.20286},
  eprint = {2609.20286},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.20286},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Hubbard models with ultracold shielded molecules in optical lattices
AU  - Kevin Pérez
AU  - Joseph W. Desroches
AU  - Kaden R. A. Hazzard
AU  - Tijs Karman
PY  - 2026
DA  - 2026/09/01
PB  - arXiv
DO  - 10.48550/arxiv.2609.20286
UR  - https://arxiv.org/abs/2609.20286
AB  - We show that, in appropriate regimes, ultracold collisionally shielded molecules in an optical lattice realize a controlled extended Hubbard model, despite their large-radius hard-core repulsion. We compute the Hubbard parameters and show lattice depth and microwave-induced dipolar interactions provide flexible, independent control of on- and off-site interactions. This makes shielded molecules a powerful platform for extended Hubbard models and enables an interaction microscope that can distinguish inter-hole interactions in doped Mott insulators - crucial to superconductivity and strange metallicity - that are indistinguishable with quantum gas microscopy alone.
ER  -