Comparison of the π and Δ operator approximations for the two-dimensional t-J model

被引：0
|
作者：
Park, Youngho [1 ]
机构：
[1] Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan
来源：
Physics Letters, Section A: General, Atomic and Solid State Physics | 1999年 / 262卷 / 01期
关键词：
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We compare the spectra of the new π operator of the SO(5) theory and the conventional Δ operator for the two-dimensional t-J model. We also calculate the weight transferred to the two-hole ground state from half-filling by these operators. We find that the spectra of these operators are quite similar and the weight for the π operator is smaller than the weight for the Δ operator. We argue that the two-dimensional t-J model does not have a good approximate SO(S) symmetry claimed in Ref. [1]. © 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：61 / 65
相关论文
共 50 条
  • [21] Impurity effect in the superconducting state of the two-dimensional t-J model
    Tsuchiura, Hiroki
    Tanaka, Yukio
    Ogata, Masao
    Kashiwaya, Satoshi
    Physica C: Superconductivity and its Applications, 1999, 317-318 : 518 - 520
  • [22] Phase separation and stripe formation in the two-dimensional t-J model:: A comparison of numerical results
    White, SR
    Scalapino, DJ
    PHYSICAL REVIEW B, 2000, 61 (09) : 6320 - 6326
  • [23] Violation of Luttinger's theorem in the two-dimensional t-J model
    Putikka, WO
    Luchini, MU
    Singh, RRP
    PHYSICAL REVIEW LETTERS, 1998, 81 (14) : 2966 - 2969
  • [24] The ground state energy and entropy of the two-dimensional t-J model
    Koretsune, T
    Ogata, M
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2002, 63 (6-8) : 1419 - 1422
  • [25] Numerical estimation of Gutzwiller factors in the two-dimensional t-J model
    Himeda, A
    Ogata, M
    PHYSICA B, 2000, 284 : 429 - 430
  • [26] Intrinsic Josephson effect in the layered two-dimensional t-J model
    Kawai, N
    Tsuchiura, H
    Tanaka, Y
    Inoue, J
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1999, 68 (10) : 3166 - 3169
  • [27] Superconductivity in the two-dimensional t-J model at low electron density
    Kagan, MY
    Rice, TM
    CZECHOSLOVAK JOURNAL OF PHYSICS, 1996, 46 : 965 - 966
  • [28] Carrier dispersion in the two-dimensional t-J model on a triangular lattice
    Rubin, R.
    Sherman, A.
    Schreiber, M.
    PHYSICS LETTERS A, 2008, 372 (31) : 5229 - 5232
  • [29] Does the two-dimensional t-J model have hole pockets?
    Putikka, WO
    Luchini, MU
    Singh, RRP
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1998, 59 (10-12) : 1858 - 1860
  • [30] Heat capacity and spin susceptibility of two-dimensional t-J model
    Antsygina, T. N.
    Poltavskaya, M. I.
    Poltavsky, I. I.
    Chishko, K. A.
    LOW TEMPERATURE PHYSICS, 2007, 33 (6-7) : 625 - 629
12345