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Renormalization of the nodal quasiparticle current in the Resonating Valence Bond (RVB) theory

โœ Scribed by Bernhard Edegger; V.N. Muthukumar; Claudius Gros

Book ID
104083044
Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
124 KB
Volume
460-462
Category
Article
ISSN
0921-4534

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โœฆ Synopsis

We calculate the quasiparticle current renormalization (effective charge) in the renormalized mean field theory (RMFT) of the large U Hubbard model. We find that the quasiparticle current is significantly renormalized by strong correlations and vanishes at half filling. Our results are in excellent agreement with a recent variational Monte Carlo (VMC) study. We discuss experimental and theoretical implications on the T-dependence of the superfluid density.

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