English

Quantum quenches and competing orders: I. Time-dependent Hartree-Fock+BCS theory

Superconductivity 2019-12-06 v3 Strongly Correlated Electrons

Abstract

We study the non-equlibrium dynamics of an electronic model of competing bond density wave order and dd-wave superconductivity. In a time-dependent Hartree-Fock+BCS approximation, the dynamics reduces to the equations of motion of operators realizing the generators of SU(4) at each pair of momenta, (k,k)(\boldsymbol{k}, -\boldsymbol{k}), in the Brillouin zone. We compare the results of numerical studies of our model with recent picosecond optical experiments.

Keywords

Cite

@article{arxiv.1401.7674,
  title  = {Quantum quenches and competing orders: I. Time-dependent Hartree-Fock+BCS theory},
  author = {Wenbo Fu and Ling-Yan Hung and Subir Sachdev},
  journal= {arXiv preprint arXiv:1401.7674},
  year   = {2019}
}

Comments

This paper has been combined with arXiv:1402.0875