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TT: Tiefe Temperaturen
TT 26: Korrelierte Elektronen: Theorie II
TT 26.2: Talk
Thursday, March 11, 2004, 09:45–10:00, H18
Phase diagram of the one-dimensional t−J model — •Jochen Hub, Catia Lavalle, and Alejandro Muramatsu — Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart
Using a recently developed hybrid-loop algorithm [1]
we determine the phase diagram of the t−J model in one-dimension,
where a Luttinger-liquid phase (with Kρ<1 and Kρ>1),
a spin-gap phase and a region of phase-separation are determined on
the basis of a detailed finite-size scaling.
[1]
C. Lavalle, M. Arikawa, S. Capponi, F. F. Assaad and M. Muramatsu
Phys. Rev. Lett. 90, 216401 (2003)