PIRSA:16080036 Conference Condensed Matter Quantum Fields and Strings

DOI10.48660/16080036

Conference/School: Low Energy Challenges for High Energy Physicists II

Zwierlein, M. (2016). Solitons and Spin-Charge Correlations in Strongly Interacting Fermi Gases. Perimeter Institute. https://pirsa.org/16080036

Zwierlein, Martin. Solitons and Spin-Charge Correlations in Strongly Interacting Fermi Gases. Perimeter Institute, Aug. 22, 2016, https://pirsa.org/16080036 

@misc{ pirsa_PIRSA:16080036,
  doi = {10.48660/16080036},
  url = {https://pirsa.org/16080036},
  author = {Zwierlein, Martin},
  keywords = {Condensed Matter, Quantum Fields and Strings},
  language = {en},
  title = {Solitons and Spin-Charge Correlations in Strongly Interacting Fermi Gases},
  publisher = {Perimeter Institute},
  year = {2016},
  month = {aug},
  note = {PIRSA:16080036 see, \url{https://pirsa.org}}
}

Abstract

Ultracold atomic Fermi gases near Feshbach resonances or in optical lattices realize paradigmatic, strongly interacting forms of fermionic matter. Topological excitations and spin-charge correlations can be directly imaged in real time. In resonant fermionic superfluids, we observe the cascade of solitonic excitations following a pi phase imprint. A planar soliton decays, via the snake instability, into vortex rings and long-lived solitonic vortices. For fermions in optical lattices, realizing the Fermi-Hubbard model, we detect charge and antiferromagnetic spin correlations with single-site resolution. At low fillings, the Pauli and correlation hole is directly revealed. In the Mott insulating state, we observe strong doublon-hole correlations, which should play an important role for transport.

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