Charge density correlations in t-J ladders investigated by the contractor-renormalization method

Physical Review B - Condensed Matter and Materials Physics

Volumn 66, Issue 18, 2002, Pages 1805031-1805034

  Capponi, Sylvain ^a   Poilblanc, Didier ^a  

^a CNRS   (France)

Author keywords

[No Author keywords available]

Indexed keywords

ARTICLE; BINDING KINETICS; CALCULATION; CORRELATION ANALYSIS; DENSITY; ENERGY; PHYSICS;

EID: 0036870758     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (26)

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18. Details and extensions will be reported elsewhere; S. Capponi et al. (unpublished).
19. A similar procedure uses a decomposition in terms of two-site rungs, see J. Riera, Phys. Rev. B 66. 134523 (2002).
20. Within the two-site rung decoupling scheme no hole-pair-magnon bound state is found (Ref. 13) in contradiction with numerical results (Ref, 18). However, this result might apply to anisotropic ladders [J. Riera (private communication)].
21. -1 are defined as second-order corrections of the GS energy (per site) to a phase twist of the PBC and a change of the particle density, respectively; see, e.g., Ref. 7.
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