nLab strongly correlated system

Idea

Many-body systems, that is physical systems comprising many interacting particles are called strongly correlated if the interactions are strong in the sense that they are causing configurations which are not just perturbations of the non-interacting or weakly interacting system; and in which the correlations between different particles are also strong.

Examples

• plasma

• strongly correlated electron systems (cf. topological order)

• many models of magnetism, frustrated magnetism

• High-$T_c$ superconductivity

References

Relevance of non-perturbative field theory-methods in condensed matter theory (quantum materials) and quantum information theory (topological quantum computation):

• Alvaro Ferraz, Kumar S. Gupta, Gordon W. Semenoff, Pasquale Sodano (eds): Strongly Coupled Field Theories for Condensed Matter and Quantum Information Theory, Springer Proceedings in Physics 239, Springer (2020) [doi:10.1007/978-3-030-35473-2, pdf]

• Peter Fulde, Correlated Electrons in Quantum Matter, World Scientific (2012) [doi:10.1142/8419, pdf]

• Andreas Schadschneider, Götz S. Uhrig: Strongly Correlated Systems in Solid State Physics, lecture notes (2004) [pdf, pdf]

  (focus on spin chain-models)

category: physics