Virginia TechLee, T. K.Shih, C. T.2014-02-112014-02-111997-03-01Lee, TK ; Shih, CT, Mar 1, 1997. "Dispersion of a single hole in the t-J model," PHYSICAL REVIEW B 55(9): 5983-5987. DOI: 10.1103/PhysRevB.55.59830163-1829http://hdl.handle.net/10919/25366The dispersion of a single hole in the t-J model obtained by the exact result of 32 sites and the results obtained by self-consistent Born approximation and the Green function Monte Carlo method can be simply derived by a mean-field theory with d-wave resonating-valence-bond (d-RVB) and antiferromagnetic order parameters. In addition, it offers a simple explanation for the difference observed between those results. The presence of the extended van Hove region at (pi,0) is a consequence of the (d-RVB pairing instead of the antiferromagnetic order. Results including t' and t '' are also presented and explained consistently in a similar way.en-USIn Copyrightvariational monte-carlo2-dimensional quantum antiferromagnetvalence-bond statesuperconductivityphotoemissionsr2cuo2cl2excitationla2cuo4PhysicsArticle - Refereedhttp://link.aps.org/doi/10.1103/PhysRevB.55.5983https://doi.org/10.1103/PhysRevB.55.5983