Landau Transport equations in slave-boson mean-field theory of t-J model

Details Landau Transport equations in slave-boson mean-field theory of t-J model Landau Transport equations in slave-boson mean-field theory of t-J model

2003-05-19

arxiv.org/abs/cond-mat/0305424v1

Physics

Condensed Matter

Strongly Correlated Electrons

19 pages

Scientific paper

10.1103/PhysRevB.69.125112

In this paper we generalize slave-boson mean-field theory for $t-J$ model to the time-dependent regime, and derive transport equations for $t-J$ model, both in the normal and superconducting states. By eliminating the boson and constraint fields exactly in the equations of motion we obtain a set of transport equations for fermions which have the same form as Landau transport equations for normal Fermi liquid and Fermi liquid superconductor, respectively with all Landau parameters explicity given. Our theory can be viewed as a refined version of U(1) Gauge theory where all lattice effects are retained and strong correlation effects are reflected as strong Fermi-liquid interactions in the transport equation. Some experimental consequences are discussed.

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