Gauge symmetry in models of high temperature superconductors

• Autorzy: Przeszowski J.
• Języki publikacji: EN

Abstrakty

EN

Gauge symmetry which appears in the slave-mode approach to the t-J model of high temperature superconductivity is presented. The mean field analysis of these microscopic models lead to the continuum gauge field systems with infinitely strong coupling constant. The viability of the perturbative calculations (with finite coupling constant) are illustrated with a particularly simple field theory model. Exact resummation of the perturbation series is discussed for the Heisenberg model of strongly interacting spins in 1 + 1 dimensions which is approximated by the Schwinger model.

Słowa kluczowe

EN

Heisenberg model; high-temperature superconductors; perturbation theory; t-J model

PL

model Heisenberga; model t-J; nadprzewodnik wysokotemperaturowy; teoria perturbacji

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Journal of Technical Physics
• Rocznik: 2001
• Tom: Vol. 42, no 4
• Strony: 389--396
• Opis fizyczny: Bibliogr. 20 poz.,

Twórcy

autor

Przeszowski J.

• Institute of Fundamental Technological Research Polish Academy of Sciences, ul. Świętokrzyska 11/21, O1-357 Warsaw, Poland and Institute of Theoretical Physics University of Białystok ul. Lipowa 41, 15-424 Białystok, Poland,