Virginia TechChen, Y. C.Lee, T. K.2014-02-112014-02-111996-10-01Chen, YC ; Lee, TK, Oct 1, 1996. "Variational study of the spin-gap phase of the one-dimensional t-J model," PHYSICAL REVIEW B 54(13): 9062-9065. DOI: 10.1103/PhysRevB.54.90620163-1829http://hdl.handle.net/10919/25426We propose a correlated spin-singlet-pair wave function to describe the spin-gap phase of the one-dimensional t-J model at low density and large J/t. In addition to having singlet pairs, this wave function has a Jastrow factor with a variational parameter nu. Several correlation functions are calculated by using the variational Monte Carlo method. The result shows the expected long-range behavior of the Luther-Emery phase with the Luttinger exponent K-rho, related to nu, K-rho=1/2 nu.en-USIn Copyrightluttinger-liquidchargestatePhysicsArticle - Refereedhttp://link.aps.org/doi/10.1103/PhysRevB.54.9062https://doi.org/10.1103/PhysRevB.54.9062