On the effect of Umklapp processes in one-dimensional conductors
- 25 Downloads
Using a modified renormalization group (RG) approach, we study the effect of Umklapp processes for arbitrary band filling. In order to confirm the behavior of invariant coupling obtained previously by means of certain approximations, we present the results of a numerical solution of the RG equations. Considering the response functions of a one-dimensional conductor, we show that Umklapp processes are irrelevant for T<|δμ|, where δμ is the deviation of the Fermi energy from the commensurability level.
KeywordsResponse Function Magnetic Material Renormalization Group Fermi Energy Renormalization Group Equation
Unable to display preview. Download preview PDF.
- 1.I. E. Dzyaloshinsky and A. I. Larkin,Zh. Eksp. Teor. Fiz. 65, 410 (1973) [Sov. Phys. JETP 38, 202 (1974)].Google Scholar
- 2.C. Seidel and V. N. Prigodin,J. Low Temp. Phys. 48, 85 (1982).Google Scholar
- 3.J. Sólyom,Adv. Phys. 28, 201 (1979).Google Scholar
- 4.M. Kimura,Prog. Theor. Phys. 53, 955 (1975).Google Scholar