Virginia TechXu, J. H.Ting, C. S.Lee, T. K.2014-05-072014-05-071991-04Xu, J. H.; Ting, C. S.; Lee, T. K., "Hole dynamics and effective hole-hole interaction in a quantum antiferromagnet," Phys. Rev. B 43, 8733(R) DOI: http://dx.doi.org/10.1103/PhysRevB.43.87330163-1829http://hdl.handle.net/10919/47852By the use of an effective Hamiltonian which takes into account the constraint on the motion of holes in a quantum antiferromagnet, the dynamics of holes is investigated. It is found that there is a quasiparticle band whose width is of order J at the bottom of the hole spectrum. The effective hole-hole interaction mediated by spin fluctuations is derived and the attraction between holes in the d-wave channel is obtained. The results suggest that a d-wave-pairing condensation in a quantum antiferromagnet is very possible.en-USIn Copyrightsquare-lattice antiferromagnetspin-wave theorysuperconductivitymodelphysics, condensed matterArticle - Refereedhttp://journals.aps.org/prb/abstract/10.1103/PhysRevB.43.8733https://doi.org/10.1103/PhysRevB.43.8733