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7 - Noninteracting Bands

from Part IV - Optical Lattices

Published online by Cambridge University Press:  30 January 2021

Hui Zhai
Affiliation:
Tsinghua University, Beijing
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Summary

1. Introduce the basic concepts of single-particle dispersion in a lattice.

2. Introduce maximally localized Wannier wave functions and their importance in constructing interacting models.

3. Introduce the basic idea of quantum simulation.

4. Introduce the Dirac point in the honeycomb lattice and the concept of a semimetal.

5. Illustrate the Dirac and the Weyl points as topological defects in the momentum space.

6. Introduce the concept of the symmetry protection for the topological stability of the Dirac point.

7. Introduce the Su-Schrieffer-Heeger model and the concept of symmetry-protected topology.

8. Introduce the Haldane model and the topological phase transition in the Haldane model.

9. Summarize the common mathematical structures between topological characters of a band theory and topological excitation in a Bose condensate.

10. Discuss the physical consequences of topological invariants for a band insulator in both near-equilibrium transport and the far-from-equilibrium quench dynamics.

11. Discuss the equivalence between neural atoms in a moving lattice and charged particles in an electric field.

12. Introduce the Floquet theory and the Floquet effective Hamiltonian from thehigh-frequency expansion.

13. Discuss various applications of periodical-driven optical lattices.

14. Introduce the Hamiltonian for atom-cavity system and highlight the role of the Langevin force term.

15. Introduce the superradiant quantum phase transition of a Bose condensate coupled to cavity light.

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Publisher: Cambridge University Press
Print publication year: 2021

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  • Noninteracting Bands
  • Hui Zhai, Tsinghua University, Beijing
  • Book: Ultracold Atomic Physics
  • Online publication: 30 January 2021
  • Chapter DOI: https://doi.org/10.1017/9781108595216.008
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  • Noninteracting Bands
  • Hui Zhai, Tsinghua University, Beijing
  • Book: Ultracold Atomic Physics
  • Online publication: 30 January 2021
  • Chapter DOI: https://doi.org/10.1017/9781108595216.008
Available formats
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Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Noninteracting Bands
  • Hui Zhai, Tsinghua University, Beijing
  • Book: Ultracold Atomic Physics
  • Online publication: 30 January 2021
  • Chapter DOI: https://doi.org/10.1017/9781108595216.008
Available formats
×