On the Stability and Single-Particle Properties of Bosonized Fermi Liquids

Details On the Stability and Single-Particle Properties of Bosonized Fermi Liquids On the Stability and Single-Particle Properties of Bosonized Fermi Liquids

1993-10-18

arxiv.org/abs/cond-mat/9310043v1

Physics

Condensed Matter

13 pages plus three postscript figures appended; RevTex 3.0; BUP-JBM-3

Scientific paper

10.1103/PhysRevB.50.1351

We study the stability and single-particle properties of Fermi liquids in spatial dimensions greater than one via bosonization. For smooth non-singular Fermi liquid interactions we obtain Shankar's renormalization- group flows and reproduce well known results for quasi-particle lifetimes. We demonstrate by explicit calculation that spin-charge separation does not occur when the Fermi liquid interactions are regular. We also explore the relationship between quantized bosonic excitations and zero sound modes and present a concise derivation of both the spin and the charge collective mode equations. Finally we discuss some aspects of singular Fermi liquid interactions.

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