One-particle equal time correlation function for the spin-incoherent infinite U Hubbard chain

Cheianov, Vadim and Zvonarev, M. B. (2008) One-particle equal time correlation function for the spin-incoherent infinite U Hubbard chain. Journal of Physics A: Mathematical and Theoretical, 41 (4): 045002. -. ISSN 1751-8113

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Abstract

We present a calculation of the one-particle equal time correlation function.(x) for the one-dimensional (1D) Hubbard model in the infinite U limit. We consider the zero temperature spin incoherent regime, which is obtained by first taking the limit U --> infinity and then the limit T --> 0. Using the determinant representation for.(x), we derive analytical expressions for both large and small x at an arbitrary filling factor 0 < rho < 1/ 2. The large x asymptotics of rho(x) is found to be remarkably accurate starting from x sin(2 pi rho) similar to 1. We find that the one-particle momentum distribution function rho(k) is a smooth function of k, and. rho'(k) is peaked at k = 2k(F) in contrast to spin-coherent liquid obeying the Luttinger theorem.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Physics A: Mathematical and Theoretical
Uncontrolled Keywords:
/dk/atira/pure/core/keywords/physics
Subjects:
?? physicsgeneral physics and astronomymodelling and simulationmathematical physicsstatistical and nonlinear physicsstatistics and probabilityphysics and astronomy(all)qc physics ??
ID Code:
55546
Deposited By:
Deposited On:
02 Jul 2012 15:16
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jul 2024 09:05